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DocWatch: ocean acidification Twitterit? News stories about "ocean acidification," with punchlines: http://apocadocs.com/d.pl?ocean+acidification Related Scary Tags: carbon emissions  ~ ocean warming  ~ climate impacts  ~ holyshit  ~ coral bleaching  ~ death spiral  ~ ecosystem interrelationships  ~ faster than expected  ~ massive die-off  ~ global warming  ~ overfishing   Thu, Feb 4, 2010 from PhysOrg.com: Oceans reveal further impacts of climate change, says UAB expert "The oceans are a sink for the carbon dioxide that is released into the atmosphere," says McClintock, who has spent more than two decades researching the marine species off the coast of Antarctica. Carbon dioxide is absorbed by oceans, and through a chemical process hydrogen ions are released to make seawater more acidic. "Existing data points to consistently increasing oceanic acidity, and that is a direct result of increasing carbon dioxide levels in the atmosphere; it is incontrovertible," McClintock says. "The ramifications for many of the organisms that call the water home are profound."... "In addition, the increased acidity of the seawater itself can literally begin to eat away at the outer surfaces of shells of existing clams, snails and other calcified organisms, which could cause species to die outright or become vulnerable to new predators." One study McClintock recently conducted with a team of UAB researchers revealed that the shells of post-mortem Antarctic marine invertebrates evidenced erosion and significant loss of mass within only five weeks under simulated acidic conditions. McClintock says acidification also could exert a toll on the world's fisheries, including mollusks and crustaceans. He adds that the potential loss of such marine populations could greatly alter the oceans' long-standing food chains and produce negative ripple effects on human industries or food supplies over time. ... It may be scientifically incontrovertible -- if you believe in "science." Apocadocument permalink Thu, Jan 21, 2010 from Seattle Times: Pacific's rising acid levels threatening marine life The most extensive survey of pH levels in the Pacific Ocean confirms what spot measurements have suggested: From Hawaii to Alaska, the upper reaches of the sea are becoming more acidic in concert with rising carbon dioxide in the atmosphere. "If you see these changes across an entire ocean basin, you can be assured it's happening on a global scale in other ocean basins around the world," said Robert Byrne, a marine chemist at the University of South Florida and lead author of an upcoming paper in Geophysical Research Letters. Ocean acidification is a threat to shelled creatures and other marine life, and is a leading suspect in the ongoing crash of Pacific oyster populations in Washington.... As expected, the researchers found acidification was strongest in the top layer of water, closest to the atmosphere. Normal seawater is slightly alkaline, with a pH value of about 8. Over the past 15 years, average pH levels in the top 300 feet of the ocean dropped 0.026 pH units. That sounds tiny, but is equivalent to a 6 percent jump in acidity, Byrne said. ... Nothing some Arm'n'Hammer won't fix! Apocadocument permalink Mon, Jan 18, 2010 from Climate Dynamics, via EPOCA: Reversible and irreversible impacts of greenhouse gas emissions in multi-century projections with the NCAR global coupled carbon cycle-climate model The reversibility and irreversibility of impacts is quantified by comparing anthropogenically-forced regional changes with internal, unforced climate variability. We show that the influence of historical emissions and of non-CO2 agents is largely reversible on the regional scale. Forced changes in surface temperature and precipitation become smaller than internal variability for most land and ocean grid cells in the absence of future carbon emissions. In contrast, continued carbon emissions over the 21st century cause irreversible climate change on centennial to millennial timescales in most regions and impacts related to ocean acidification and sea level rise continue to aggravate for centuries even if emissions are stopped in year 2100. Undersaturation of the Arctic surface ocean with respect to aragonite, a mineral form of calcium carbonate secreted by marine organisms, is imminent and remains widespread. The volume of supersaturated water providing habitat to calcifying organisms is reduced from preindustrial 40 to 25 percent in 2100 and to 10 percent in 2300 for the high emission case. We conclude that emission trading schemes, related to the Kyoto Process, should not permit trading between emissions of relatively short-lived agents and CO2 given the irreversible impacts of anthropogenic carbon emissions. ... Those scientists and their imaginary futures. I'm going back to playing "Halo 3." Apocadocument permalink Sun, Jan 10, 2010 from New York Times: Water Conservation Could Limit Suburban Lawns ...The all-American suburban lawn, the backdrop for everything from the illustrations in old Dick & Jane readers to House Beautiful, long ago began to fade in the drought-prone suburbs around San Francisco Bay. But now a 2006 state law, designed to conserve water by altering landscaping practices, is taking effect, and the changes that began three decades ago are likely to accelerate. One proposal being considered in Menlo Park could restrict lawns on new or reconfigured landscapes to no more than 500 square feet per dwelling unit or to no more than 25 percent of the landscaped area, whichever is larger. ... But my lawn... is my life! Apocadocument permalink Sun, Jan 10, 2010 from National Oceanography Centre, Southampton via ScienceDaily: Echinoderms Contribute to Global Carbon Sink; Impact of Marine Creatures Underestimated The impact on levels of carbon dioxide in the Earth's atmosphere by the decaying remains of a group of marine creatures that includes starfish and sea urchin has been significantly underestimated. "Climate models must take this carbon sink into account," says Mario Lebrato, lead author of the study.... Calcifying organisms incorporate carbon directly from the seawater into their skeletons in the form of inorganic minerals such as calcium carbonate. This means that their bodies contain a substantial amount of inorganic carbon. When they die and sink, some of the inorganic carbon is remineralised, and much of it becomes buried in sediments, where it remains locked up indefinitely.... There is a worry that ocean acidification due to increased carbon dioxide emissions from the burning of fossil fuels could reduce the amount of calcium carbonate incorporated into the skeletons of echinoderms and other calcifying organisms. ... In other words, these carbon sinks... may be sunk! Apocadocument permalink Fri, Dec 18, 2009 from Associated Press: Acid oceans, the 'evil twin' of climate change, overlooked in climate talks Far from Copenhagen's turbulent climate talks, the sea lions, harbor seals and sea otters reposing along the shoreline and kelp forests of this protected marine area stand to gain from any global deal to cut greenhouse gases. These foragers of the sanctuary's frigid waters, flipping in and out of sight of California's coastal kayakers, may not seem like obvious beneficiaries of a climate treaty crafted in the Danish capital. But reducing carbon emissions worldwide also would help mend a lesser-known environmental problem: ocean acidification.... Another way to think of ocean acidification is as osteoporosis of the seas... ... Our planet has fallen ... and it can't get up! Apocadocument permalink Wed, Dec 16, 2009 from COP15: New study: Substantial irreversible damage to ocean ecosystems According to the study, seas and oceans absorb approximately one quarter of the carbon dioxide emitted to the atmosphere from the burning of fossil fuels, deforestation and other human activities. As more and more carbon dioxide has been emitted into the atmosphere, the oceans have absorbed greater amounts at increasingly rapid rates. Without this level of absorption by the oceans, atmospheric CO2 levels would be significantly higher than at present and the effects of global climate change would be more marked. However, the absorption of atmospheric CO2 has resulted in changes to the chemical balance of the oceans, causing them to become more acidic.... This dramatic increase is 100 times faster than any change in acidity experienced in the marine environment over the last 20 million years, giving little time for evolutionary adaptation within biological systems. ... Irreversible? C'mon, we're humans. We'll figure something out. Apocadocument permalink Fri, Dec 11, 2009 from Bloomberg News: Fishermen Say Carbon Dioxide Having 'Really Scary' Ocean Effect Jeremy Brown, a fisherman from the Pacific Northwest, is pulling things from the ocean he says are so disturbing that he came to Washington to warn U.S. lawmakers about it.... the ocean is becoming more acidic because of carbon-dioxide emissions that are damaging coral reefs, decimating populations of tiny animals at the base of the food chain and eating away at the shells of clams, mussels and oysters. "Every so often we snag a piece of coral on the gear," Brown, of Bellingham, Washington, said in an interview. "It doesn't look healthy, the color has gone out of it. The evidence is that we have instabilities in the system, and this last year was really scary."...Small snails and other tiny animals at the base of the food chain are disappearing at alarming rates, jeopardizing the health of pink salmon and other fish that feed on them... ... When the fishermen are scared, I'm hooked! Apocadocument permalink Wed, Dec 2, 2009 from SolveClimate: Increasing Ocean Acidification Is Tipping Fragile Balances within Marine Ecosystems Falling pH levels are particularly harmful for calcifying organisms such as coral and shellfish, which have a harder time building and maintaining their calcium-based exteriors as the ocean grows more acidic.... In fact, some ocean researchers fear that acidification will obliterate Earth's coral reefs in as few as 50 years. That's why they have begun to design cryogenically cooled coral preservation "arks" where polyps can be stored to stave off total extinction.... Corals aren't the only species likely to be affected by the ongoing acidification of the world's oceans. According to marine ecologist Joanie Kleypas, ocean acidification could affect ocean life forms ranging from tiny algae to giant whales in unpredictable ways.... Damage to populations of the tiniest plants and creatures, whether through rising water temperature, greater acidity or loss of habitat, can spread through an entire food chain, throwing it out of balance. Consider, for example, the tiny pterapod, a marine snail whose shell is affected by changing pH. The pterapod is an important food source for young salmon, mackerel, herring and cod, which are important food sources for larger animals and economic sources for humans. ... This is pterrible! Apocadocument permalink Sun, Nov 29, 2009 from Environmental Research Web: Arctic Ocean undersaturated for calcium carbonate Shelled organisms in the Canada Basin region of the Arctic Ocean could be about to experience a double whammy. Not only did increased ice melt lead to the area's surface waters becoming undersaturated in 2008 for aragonite, a form of calcium carbonate vital for shell-building, but the retreat of sea ice away from the coast means that undersaturated waters from the depths can now upwell and affect organisms living on the sea floor of the Arctic continental shelf.... "This is the first evidence of omega aragonite undersaturation in deep basin surface waters," Fiona McLaughlin of the Institute of Ocean Sciences, Canada, told environmentalresearchweb. "In a 2009 publication models predicted that the surface waters might be undersaturated in the Arctic within a decade. We're making those observations now, because the ice has melted so fast. Essentially the papers are almost being written at the same time."... Because the Arctic food web is quite simple and short, it could be extremely vulnerable to such changes. But McLaughlin says that it takes time to see how populations are decreasing. "I think this has identified that we need to go out and make counts and do a time series so that we can see whether there are effects and what these organisms' tolerance is," she explained. ... Aragonite is aragoing, aragoing.... Aragoodnight. Apocadocument permalink Mon, Nov 23, 2009 from AP, via Raw Story: Oceans rising faster than expected as climate change exceeds grimmest models Since the 1997 international accord to fight global warming, climate change has worsened and accelerated -- beyond some of the grimmest of warnings made back then. As the world has talked for a dozen years about what to do next, new ship passages opened through the once frozen summer sea ice of the Arctic. In Greenland and Antarctica, ice sheets have lost trillions of tons of ice. Mountain glaciers in Europe, South America, Asia and Africa are shrinking faster than before.... "The latest science is telling us we are in more trouble than we thought," Janos Pasztor, climate adviser to UN Secretary General Ban Ki-moon.... "The message on the science is that we know a lot more than we did in 1997 and it's all negative," said Eileen Claussen, president of the Pew Center on Global Climate Change. "Things are much worse than the models predicted." ... That's what makes science so exciting: unpredictability! Apocadocument permalink Sun, Nov 22, 2009 from BBC (UK): Acid oceans leave fish at more risk from predators Ocean acidification could cause fish to become "fatally attracted" to their predators, according to scientists. A team studying the effects of acidification - caused by dissolved CO2 - on ocean reefs found that it leaves fish unable to "smell danger". Young clownfish that were reared in the acidified water became attracted to rather than repelled by the chemical signals released by predatory fish.... In the test, the fish reared in normal water avoided the stream of water that their predators had been swimming in. They detected the odour of a predator and swam away from it. But, Ms Dixson said, fish raised in the more acidic water were strongly attracted to both the predatory and the non-predatory flumes. ... Ocean acidification makes me a little crazy, too. Apocadocument permalink Thu, Nov 19, 2009 from New York Times: Seas Grow Less Effective at Absorbing Emissions The Earth's oceans, which have absorbed carbon dioxide from fuel emissions since the dawn of the industrial era, have recently grown less efficient at sopping it up, new research suggests. Emissions from the burning of fossil fuels began soaring in the 1950s, and oceans largely kept up, scientists say. But the growth in the intake rate has slowed since the 1980s, and markedly so since 2000, the authors of a study write in a report in Thursday's issue of Nature. The research suggests that the seas cannot indefinitely be considered a reliable "carbon sink" as humans generate heat-trapping gases linked to global warming. The slowdown in the rise of the absorption rate resulted from a gradual change in the oceans' chemistry, the study found. "The more carbon dioxide the ocean absorbs, the more acidic it becomes and the less carbon dioxide it can absorb," said the study's lead author, Samar Khatiwala... ... ...from sea to slacker sea... Apocadocument permalink Mon, Oct 26, 2009 from BBC: 'Freezer plan' bid to save coral A meeting in Denmark took evidence from researchers that most coral reefs will not survive even if tough regulations on greenhouse gases are put in place. Scientists proposed storing samples of coral species in liquid nitrogen. That will allow them to be reintroduced to the seas in the future if global temperatures can be stabilised.... At this meeting, politicians and scientists acknowledged that global emissions of carbon dioxide are rising so fast that we are losing the fight to save coral and the world must develop an alternative plan. ... Clearly the moral of coral is: Time to panic!!! Apocadocument permalink Fri, Oct 9, 2009 from New York Times: Report on Future Fish Catches: everything will be okay, just different Global warming will not necessarily change the amount of fish caught half a century from now, but it will shift catches away from the tropics toward the poles, researchers reported. The researchers, from the University of British Columbia and elsewhere, used a computer model including environmental factors and data on 1,066 fish species ranging from sharks to shrimplike creatures at the bottom of the food chain. Together those species accounted for most of the world's catch from 2000 to 2004. The findings were reported in the journal Global Change Biology. By 2055, the scientists predicted, countries like China, Chile, Indonesia and the United States (excepting Alaska and Hawaii) will see catches decline, while catches off Alaska, Greenland, Norway and Russia will rise. ... Make that two orders of shark-fin soup! Apocadocument permalink Sun, Oct 4, 2009 from London Guardian: Arctic seas turn to acid, putting vital food chain at risk Carbon-dioxide emissions are turning the waters of the Arctic Ocean into acid at an unprecedented rate, scientists have discovered. Research carried out in the archipelago of Svalbard has shown in many regions around the north pole seawater is likely to reach corrosive levels within 10 years. The water will then start to dissolve the shells of mussels and other shellfish and cause major disruption to the food chain. By the end of the century, the entire Arctic Ocean will be corrosively acidic....About a quarter of the carbon dioxide pumped into the atmosphere by factories, power stations and cars now ends up being absorbed by the oceans. That represents more than six million tonnes of carbon a day. This carbon dioxide dissolves and is turned into carbonic acid, causing the oceans to become more acidic. "We knew the Arctic would be particularly badly affected when we started our studies but I did not anticipate the extent of the problem," said Gattuso. ... Oy. Speaking of acid, my stomach is killing me! Apocadocument permalink Fri, Sep 4, 2009 from Guardian (UK): How global warming sealed the fate of the world's coral reefs If you thought you had heard enough bad news on the environment and that the situation could not get any worse, then steel yourself. Coral reefs are doomed. The situation is virtually hopeless. Forget ice caps and rising sea levels: the tropical coral reef looks like it will enter the history books as the first major ecosystem wiped out by our love of cheap energy.... "The future is horrific," says Charlie Veron, an Australian marine biologist who is widely regarded as the world's foremost expert on coral reefs. "There is no hope of reefs surviving to even mid-century in any form that we now recognise. If, and when, they go, they will take with them about one-third of the world's marine biodiversity. Then there is a domino effect, as reefs fail so will other ecosystems. This is the path of a mass extinction event, when most life, especially tropical marine life, goes extinct." ... I wish these scientists would speak in less "technical" language. Oh, and more good news, willya? Apocadocument permalink Mon, Aug 17, 2009 from New Scientist: As Arctic Ocean warms, megatonnes of methane bubble up It's been predicted for years, and now it's happening. Deep in the Arctic Ocean, water warmed by climate change is forcing the release of methane from beneath the sea floor. Over 250 plumes of gas have been discovered bubbling up from the sea floor to the west of the Svalbard archipelago, which lies north of Norway. The bubbles are mostly methane, which is a greenhouse gas much more powerful than carbon dioxide.... "Hydrates are stable only within a particular range of temperatures," says Minshull. "So if the ocean warms, some of the hydrates will break down and release their methane."... Just because it fails to reach the surface doesn't mean the methane is harmless, though, as some of it gets converted to carbon dioxide. The CO2 then dissolves in seawater and makes the oceans more acidic. ... The worst-case scenario regarding really rapid greenhouse effects...? We may have to revise it. Apocadocument permalink Fri, Aug 14, 2009 from National Oceanographic Centre, via EurekAlert: Nitrogen fixation and phytoplankton blooms in the southwest Indian Ocean Nitrogen-fixing bacteria convert atmospheric nitrogen into nitrogen compounds that organisms can then use as food. This process is thought to be important in areas of the ocean where nitrogen-based nutrients are otherwise in short supply, and the researchers confirm that this is indeed the case in the region south of Madagascar. But there were some surprises. Previously, it has been thought that the large-scale autumn bloom that develops in this region is driven by nitrogen-fixing blue-green algae, or cyanobacteria, called Trichodesmium, colonies of which the researchers found to be abundant. However, the 2005 bloom was dominated by a diatom -- a type of phytoplankton -- the cells of which play host to another nitrogen-fixing cyanobacterium called Richella intracellularis, with [the blue-green algae] Trichodesmium apparently playing second fiddle.... Diatoms have relatively large cells, and when they die they sink down the water column, carrying with them carbon that is ultimately derived from carbon dioxide drawn from the atmosphere though the process of photosynthesis. ... Diatoms to the rescue? Apocadocument permalink Fri, Aug 14, 2009 from University of Alaska Fairbanks via EurekAlert: New findings show increased ocean acidification in Alaska waters The same things that make Alaska's marine waters among the most productive in the world may also make them the most vulnerable to ocean acidification. According to new findings by a University of Alaska Fairbanks scientist, Alaska's oceans are becoming increasingly acidic, which could damage Alaska's king crab and salmon fisheries.... When he tested the samples' acidity in his lab, the results were higher than expected. They show that ocean acidification is likely more severe and is happening more rapidly in Alaska than in tropical waters. The results also matched his recent findings in the Chukchi and Bering Seas.... Ocean acidification makes it more difficult to build shells, and in some cases the water can become acidic enough to break down existing shells. Mathis' recent research in the Gulf of Alaska uncovered multiple sites where the concentrations of shell-building minerals were so low that shellfish and other organisms in the region would be unable to build strong shells. "It seems like everywhere we look in Alaska's coastal oceans, we see signs of increased ocean acidification," said Mathis. ... pHrankly, I find these pHindings pHenomenally pHrightening. Apocadocument permalink Tue, Aug 11, 2009 from ARC Center, via ScienceDaily: Humans 'Damaging The Oceans' In Profound Ways Man-made carbon emissions "are affecting marine biological processes from genes to ecosystems over scales from rock pools to ocean basins, impacting ecosystem services and threatening human food security," ... rates of physical change in the oceans are unprecedented in some cases, and change in ocean life is likely to be equally quick. These include changes in the areas fish and other sea species can inhabit, invasions, extinctions and major shifts in marine ecosystems.... Man-made carbon emissions are now above the 'worst case' scenario envisioned by the Intergovernmental Panel on Climate Change (IPCC), causing the most rapid global warming seen since the peak of the last Ice Age. At the same time the carbon is acidifying the oceans, with harmful consequences for certain plankton and shellfish. ... Whoops. Our bad. How do you hit Restart on this game? Apocadocument permalink Sat, Aug 8, 2009 from University of Hawaii, via ScienceDaily: Researchers Reveal Ocean Acidification At Station ALOHA In Hawaii Since the beginning of the industrial age, CO2-driven acidification of the surface oceans has already caused a 0.1 unit lowering of pH, and models suggest that another 0.3 pH unit drop by the year 2050 is likely. Continued acidification of the sea may have a host of negative impacts on marine biota, and has the potential to alter the rates of ocean biogeochemical processes. Despite the global environmental importance of ocean acidification, there are few studies of sufficient duration, accuracy and sampling intensity to document the rate of change of ocean pH and shed light on the factors controlling its variability.... [However,] Dore, along with SOEST co-authors Karl, Lukas, Matt Church and Dan Sadler, found that over the two decades of observation, the surface ocean grew more acidic at exactly the rate expected from chemical equilibration with the atmosphere. However, that rate of change varied considerably on seasonal and inter-annual timescales, and even reversed for one period of nearly five years. The year-to-year changes appear to be driven by climate-induced changes in ocean mixing and attendant biological responses to mixing events. ... In this case, "exactly as expected" may be "worse than we imagined." Apocadocument permalink Fri, Jul 24, 2009 from VOA News: Report: 85 Percent of World's Oyster Reefs Have Been Lost A recent study by environmental organizations found that nearly 85 percent of the oyster reefs worldwide have been lost. But beyond providing food around the world, oyster reefs play a key role in the oceans.... "The issue is that oysters face a multitude of stresses in coastal environments; from water quality to algae blooms, to high sediment loads and some of the places are too far gone," he said. Oysters are ecosystem engineers that filter water and remove pollution and excess nutrients that can spark algae blooms. But, Luckenback says, their capacity has a limit and research shows that oysters expose to a variety of toxins have been shown to be more susceptible to diseases and death. ... Then what will we cast before swine? Apocadocument permalink Wed, Jul 22, 2009 from SouthCoast Today: NOAA's chief poses 'grand' ocean challenge "In our fisheries, the rich biodiversity of life swimming in and flying above the oceans, and our own well being all depend upon the actions we take this year and this decade," said Lubchenco, a marine ecologist who taught at Oregon State University before President Barack Obama appointed her as head of NOAA. "Too much is at stake to continue on our present path," she said. "Too much is at risk if we ignore either oceans or climate change."... Changes in ocean temperature could cause fish species to migrate northward and could throw current predator-prey relationships out of balance. Ocean acidification related to the buildup of carbon dioxide in the atmosphere could make it difficult for scallops, oysters, mussels, clams, lobsters and other shellfish to produce and maintain hard shells or skeletons. "This is a relatively recently uncovered problem," she said. "And we don't yet know how every single species will respond. But for most species it will be increasingly challenging for them." ... You're saying "our present path" is unsustainable? Haven't you heard that "the American way of life is non-negotiable"? Apocadocument permalink Mon, Jul 20, 2009 from YouTube, et al.: 'Doc Michael lets loose the dogs of fear In June of 2009, I gave what I consider my most important speech to date, at the Association of American University Presses' annual meeting. It was the last presentation in the last Plenary session of the meeting, and allowed me to talk about the two issues that matter most to me: saving scholarly publishing, and saving civilization. In 16 minutes. My friend Paul Murphy, of RAND Publishing, took guerrilla video footage of most of the speech, and then edited my Powerpoint in, bless his heart. It is available below, via YouTube. (Thanks, Paul!)... "But CO2 does something much worse. While we bicker with global-warming deniers, the ocean is getting more acidic. Excess CO2 plus ocean produces carbonic acid. Ocean acidification is a clear and present danger. A slight rise in acidity dramatically affects calcium-carbonate-based lifeforms, like most plankton, shellfish, and coral, the cornerstones of the ocean biosphere.... If, over the next decade, humans continue doing what we have done for the last fifty years, then we will construct our own hell, and our grandchildren will curse our names." ... Does a speech count as news, even from the heart, if it happens at a conference? Of scholarly publishers? Apocadocument permalink Tue, Jul 7, 2009 from Reuters: Reefs could perish by end of century, experts warn Increasingly acidic oceans and warming water temperatures due to carbon dioxide emissions could kill off the world's ocean reefs by the end of this century, scientists warned on Monday. The experts told a meeting in London the predicted pace of emissions means a level of 450 parts per million of carbon dioxide (CO2) in the atmosphere will be reached by 2050, putting corals on a path to extinction in the following decades.... "The kitchen is on fire and it's spreading around the house," Alex Rogers of the Zoological Society of London and the International Program on the State of the Ocean, said in a statement. ... Maybe... just maybe... the right metaphor will be the turning point. Apocadocument permalink Mon, Jul 6, 2009 from Guardian (UK): Just add lime (to the sea) -- the latest plan to cut CO2 emissions Putting lime into the oceans could stop or even reverse the accumulation of CO2 in the atmosphere, according to proposals unveiled at a conference on climate change solutions in Manchester today. According to its advocates, the same technique could help fix one of the most dangerous side effects of man-made CO2 emissions: rising ocean acidity. The project, known as Cquestrate, is the brainchild of Tim Kruger, a former management consultant. "This is an idea that can not only stop the clock on carbon dioxide, it can turn it back," he said, although he conceded that tipping large quantities of lime into the sea would currently be illegal.... Kruger admits there are challenges to overcome: the world would need to mine and process about 10 cubic kilometres of limestone each year to soak up all the emissions the world produces, and the plan would only make sense if the CO2 resulting from lime production could be captured and buried at source. ... Management consultants make recommendations, and make up catchy branding. They rarely analyze unintended consequences. Apocadocument permalink Fri, Jul 3, 2009 from New Scientist: Meadows of the sea in 'shocking' decline Seagrass meadows are disappearing at an accelerating pace, according to a new report, which is the first to look at the problem on a global scale. Seagrass meadows, along with coral reefs, mangrove forests, and salt-marshes, provide valuable ecosystem services like nutrient cycling. They also protect edible crustaceans, like shrimps and crabs, and juvenile fish such as salmon. In addition, seagrass meadows provide habitats for endangered species like dugongs, manatees, and sea turtles. While marine ecologists have been measuring localized seagrass loss for decades, they had never before pooled their information to get a global perspective. So a team led by Michelle Waycott of James Cook University in Townsville, Queensland, Australia pooled data from 215 regional studies, from 1879 to 2006. They found that the total area of known seagrass meadow had decreased by 29 per cent over the 127 years. They also found that the rate of loss had accelerated, from less than 1 per cent per year in the 1940s to 7 per cent per year since the 1990s.... Overall, the rate of loss is comparable to that for tropical rainforests and coral reefs. ... Those meadows are probably having problems because we're not mowing them often enough. Apocadocument permalink Sat, Jun 27, 2009 from Western Morning News (UK): Marine life 'at risk' from CO2 THE Arctic Ocean could become corrosive to marine life within a matter of decades, according to leading scientists who will be attending a critical meeting in Plymouth next week. More than 100 marine scientists specialising in ocean acidification will gather at the Plymouth University on Monday to discuss their research into the dramatic effects of excess carbon dioxide being absorbed from the atmosphere into the oceans. Ocean acidification, often referred to as "the other C02 problem", is a relatively recently recognised consequence of C02 emissions and threatens to corrode shell or skeleton-forming marine organisms. The oceans are a natural sink for C02 and, because of their sheer collective size, were once thought too big to be affected by humans.... Dr Carol Turley, senior scientist at Plymouth Marine Laboratory, said: "Ocean acidification is real, it's happening and it's happening now, so it is essential for us to gain as much insight as possible to help us understand and plan for the effects that are inevitable. "Even small changes are likely to have major impacts on the ocean and its food webs, including the oxygen we breathe and the fish we eat, and that means it will affect all of us." ... "The other CO2 problem"?? Apocadocument permalink Fri, Jun 26, 2009 from New Scientist: Ozone hole has unforeseen effect on ocean carbon sink The Southern Ocean has lost its appetite for carbon dioxide, and now it appears that the ozone hole could be to blame. In theory, oceans should absorb more CO2 as levels of the gas in the atmosphere rise. Measurements show that this is happening in most ocean regions, but strangely not in the Southern Ocean, where carbon absorption has flattened off. Climate models fail to reproduce this puzzling pattern. The Southern Ocean is a major carbon sink, guzzling around 15 per cent of CO2 emissions. However, between 1987 and 2004, carbon uptake in the region was reduced by nearly 2.5 billion tonnes -- equivalent to the amount of carbon that all the world's oceans absorb in one year. ... Good grief -- this is good for ocean acidification, bad for global warming... or is it the other way around? Apocadocument permalink Tue, Jun 16, 2009 from Carnegie Institution, via EurekAlert: Global sunscreen won't save corals Emergency plans to counteract global warming by artificially shading the Earth from incoming sunlight might lower the planet's temperature a few degrees, but such "geoengineering" solutions would do little to stop the acidification of the world oceans that threatens coral reefs and other marine life, report the authors of a new study in the journal Geophysical Research Letters*. The culprit is atmospheric carbon dioxide, which even in a cooler globe will continue to be absorbed by seawater, creating acidic conditions.... Rising levels of carbon dioxide make seawater more acidic, leading to lower mineral saturation. Recent research has indicated that continued carbon dioxide emissions will cause coral reefs to begin dissolving within a few decades, putting the survival of these ecosystems at extreme risk. Geoengineering's minimal effect on ocean acidification adds another factor to the debate over the advisability of intentionally tampering with the climate system. ... You mean there's no universal technological fix? But that's unamerican! Apocadocument permalink Wed, Jun 10, 2009 from McClatchy Newspapers: Scientists: Global warming has already changed oceans In Washington state, oysters in some areas haven't reproduced for four years, and preliminary evidence suggests that the increasing acidity of the ocean could be the cause. In the Gulf of Mexico, falling oxygen levels in the water have forced shrimp to migrate elsewhere.... Federal studies also found acidity levels in the North Pacific and off Alaska are unusually high compared to other ocean regions. The high acidity is already taking a toll of such tiny species as pteropods, which are an important food for salmon and other fish. As greenhouse gas emissions increase, billions of tons of carbon dioxide from smokestacks and vehicle tailpipes are absorbed by the oceans. The result is carbonic acid, which dilutes the "rich soup" of calcium carbonate in the seawater that many species, especially on the low end of the food chain, thrive in... ... Pthose wreptched, ptiny pteropods. Apocadocument permalink Mon, Jun 1, 2009 from InterAcademy Panel on International Issues: Ocean acidification must be on the Copenhagen agenda, world's scientists warn Ocean acidification, one of the world's most important climate change challenges, may be left off the agenda at the United Nations Copenhagen conference, the world's science academies warned today.... 70 national science academies signed the statement.... "The implications of ocean acidification cannot be overstated. Unless we cut our global CO2 emissions by at least 50 percent by 2050 and thereafter, we could be looking at fundamental and immutable changes in the makeup of our marine biodiversity. The effects will be seen worldwide, threatening food security, reducing coastal protection and damaging the local economies that may be least able to tolerate it." ... Fundamental and immutable means the ocean as we know it will die. Or, perhaps most frighteningly, "no more Filet o' Fish McSandwiches." Apocadocument permalink Mon, Jun 1, 2009 from Institute of Physics, via EurekAlert: Anticipating ocean acidification's economic consequences on commercial fisheries Ocean acidification, a direct result of increased CO2 emission, is set to change the Earth's marine ecosystems forever and may have a direct impact on our economy, resulting in substantial revenue declines and job losses.... Ocean acidification and declining carbonate ion concentration in sea water could directly damage corals and mollusks which all depend on sufficient carbonate levels to form shells successfully. Subsequent losses of prey such as plankton and shellfish would also alter food webs and intensify competition among predators for nourishment.... "The worldwide political, ethical, social and economic ramifications of ocean acidification, plus its capacity to switch ecosystems to a different state following relatively small perturbations, make it a policy-relevant "tipping element" of the earth system." ... "Policy-relevant tipping element"? Is this a bad acid trip? Apocadocument permalink Fri, May 22, 2009 from Mongabay: 85 percent of oyster reefs gone The first global report on the state of shellfish was released today at the International Marine Conservation Congress in Washington, DC. Painting a dire picture for shellfish worldwide, the report found that 85 percent of oyster reefs have vanished.... "We're seeing an unprecedented and alarming decline in the condition of oyster reefs, a critically important habitat in the world's bays and estuaries," said Mike Beck, senior marine scientist at The Nature Conservancy and lead author of the report. Oyster reefs in North America, Europe, and Australia are particularly hard-hit with many of the reef systems considered functionally extinct. Still the majority of wild oysters come from the east coast of North America, where even these productive reefs are in decline. ... Thank goodness I don't even like oysters. Apocadocument permalink Sat, May 16, 2009 from Inter Press Service: Deep CO2 Cuts May Be Last Hope for Acid Oceans Ocean acidification offers the clearest evidence of dangers of climate change. And yet the indisputable fact that burning fossil fuels is slowly turning the oceans into an acid bath has been largely ignored by industrialised countries and their climate treaty negotiators, concluded delegates from 76 countries at the World Oceans Conference in Manado, Indonesia. Oceans and coastal areas must be on the agenda at the crucial climate talks in Copenhagen in December, they wrote in a declaration. "We must come to the rescue of the oceans," declared Indonesian President Susilo Bambang Yudhoyono at the opening of high-level government talks on Thursday in the northern city of Manado.... Each day, the oceans absorb 30 million tonnes of CO2, gradually and inevitably increasing their acidity. There is no controversy about this basic chemistry. ... "No controversy"??? Come on, skeptics! Quit yer slackin'! Apocadocument permalink Fri, May 15, 2009 from Associated Press: Enviros sue EPA over ocean acidification An environmental group is suing the U.S. Environmental Protection Agency, seeking to have Washington coastal waters listed as impaired because carbon dioxide is making the ocean more acidic. The Center for Biological Diversity said the EPA has failed to consider how ocean acidification is adversely affecting water quality and marine animals. The complaint filed Thursday in U.S. District Court in Seattle alleges the EPA violated the federal Clean Water Act by not listing Washington ocean waters as impaired, even though the group says research shows carbon dioxide in seawater is threatening marine ecosystems. ... You know you're in trouble when ya gotta sue somebody into doing their job! Apocadocument permalink Wed, Apr 1, 2009 from Vancouver Sun: Not your ordinary fish story "Fish are essential to human life in all kinds of ways, but we're losing them at such a rate that they'll never recover. I used to go fishing with my dad all the time and sit in a rowboat and catch cutthroat trout, we'd jig for halibut, and we could drop a line anywhere at the mouth of the Fraser and catch sturgeon," he says.... The worst-case scenario approaches science-fiction, he says, because as commercial over-fishing and climate change begin to change ecosystems, the quality of the oceans begins to change as well. Acidity levels are rising and carbon dioxide levels are at the point of maximum saturation. If we continue on the same track, Suzuki says within 50 years waterfront homes will be as desirable as a yurt on a garbage dump as the water becomes slick, acidic, stinky and laden with jellyfish. ... And what's so wrong with a yurt? Apocadocument permalink Sat, Mar 21, 2009 from Pocono Record: What jellyfish can tell us about climate change Acidic ocean water has already affected sea life, from hearty sea corals to the shells of open ocean snails called pteropods, which swim on the surface. The shells of these snails are made out of calcium carbonate, which is starting to dissolve from the acid. Hunt and his fellow researchers observed a startling cascade effect, noting that the young red paper lantern jellyfish roost in the shells of these snails. As the snails have started to wilt from acidic oceans, it has left young red paper lantern jellyfish vulnerable. "If that snail goes, the red lantern goes. If the red lantern goes, maybe the sea spider and shrimp will go. We just don't know," Hunt said. "If we're not careful, we may well hinder some network of species that does impact us." Hunt and his fellow researchers were caught off guard by the speed with which acidic water affected creatures on the ocean surface, which, in turn, rippled thousands of feet below. ... Ecosystem interrelationships? Just a theory. Apocadocument permalink Wed, Mar 18, 2009 from Gulf Times (Qatar): Warning over ocean acidity The study predicts "dangerous" levels of ocean acidification and severe consequences for organisms called marine calcifiers, which form chalky shells. It says: "We find the future rate of surface ocean acidification and environmental pressure on marine calcifiers very likely unprecedented in the past 65mn years." ... He said: "If we do not cut carbon dioxide emissions deeply, and soon, the consequences of ocean acidification will stand out against the broad reaches of geologic time. Those consequences will remain embedded in the geologic record as testimony from a civilisation that had the wisdom to develop high technology but did not develop the wisdom to use it wisely." ... You mean... they'll know what fools we were? Apocadocument permalink Fri, Mar 13, 2009 from Telegraph.co.uk: World's leading scientists in desperate plea to politicians to act on climate change In what was described as a watershed moment, more than 2,500 leading environmental experts agreed a statement that called on governments to act before the planet becomes an unrecognisable -- and, in places, impossible -- place to live. At an emergency climate summit in Copenhagen, scientists agreed that "worst case" scenarios were already becoming reality and that, unless drastic action was taken soon, "dangerous climate change" was imminent.... In a strongly worded message that, unusually for academics, appealed directly to politicians, they said there was "no excuse for inaction" and that "weak and "ineffective" governments must stand up to big business and "vested interests".... Steps should be "vigorously and widely implemented", they said, to reduce greenhouse gases. Failure to do so would result in "significant risk" of "irreversible climatic shifts", the statement added... Prof Kevin Anderson, the research director at the Tyndall Centre for Climate Change Research in Manchester, said: "Scientists have lost patience with carefully constructed messages being lost in the political noise. We are now prepared to stand up and say enough is enough." ... You mean... more study isn't needed? Apocadocument permalink Thu, Mar 12, 2009 from New York Times: Rise in Ocean Acidity May Lead to Thinner Plankton Shells There's now a good piece of direct evidence that the increasing acidification of the oceans, brought on by rising levels of atmospheric carbon dioxide, is affecting the ability of small marine organisms to create shells.... Andrew D. Moy and William R. Howard of the Antarctic Climate and Ecosystems Cooperative Research Center in Hobart, Tasmania, and colleagues found that the shells of one modern species in the Southern Ocean were lighter than shells of the same species in core samples from the ocean floor. Those core shells predate the industrial age, when CO2 levels started rising and the acidity of the ocean, caused by the absorption of the gas, began to increase. The researchers, who reported on their work in Nature Geoscience, found that the modern shells were 30 to 35 percent lighter than older shells of the same size range. "We actually think the shells are thinner," Dr. Howard said. ... As if I care about plankton. What have they ever done for me? Apocadocument permalink Tue, Mar 10, 2009 from London Guardian: Carbon emissions creating acidic oceans not seen since dinosaurs Human pollution is turning the seas into acid so quickly that the coming decades will recreate conditions not seen on Earth since the time of the dinosaurs, scientists will warn today. The rapid acidification is caused by the massive amounts of carbon dioxide belched from chimneys and exhausts that dissolve in the ocean. The chemical change is placing "unprecedented" pressure on marine life such as shellfish and lobsters and could cause widespread extinctions, the experts say. The study, by scientists at Bristol University, will be presented at a special three-day summit of climate scientists in Copenhagen, which opens today. The conference is intended to update the science of global warming and to shock politicians into taking action on carbon emissions. The Bristol scientists cannot talk about their unpublished results until they are announced later today. But a summary of the findings seen by the Guardian predicts "dangerous" levels of ocean acidification and severe consequences for organisms called marine calcifiers, which form chalky shells. ... And in those days, cavemen had no means of recording this phenomenon. Apocadocument permalink Mon, Mar 9, 2009 from Mongabay: Seven new species of deep sea coral discovered In the depths of the Papahanaumokuakea Marine National Monument, which surrounds ten Hawaiian islands, scientists discovered seven new species of bamboo coral. Supported by the National Ocean and Atmospheric Administration (NOAA), the discoveries are even more surprising in that six of the seven species may represent entirely new genus of coral. "These discoveries are important, because deep-sea corals support diverse seafloor ecosystems and also because these corals may be among the first marine organisms to be affected by ocean acidification," said Richard Spinrad, NOAA's assistant administrator for Oceanic and Atmospheric Research. ... "Discovered" just in time to be lost. Apocadocument permalink Mon, Mar 9, 2009 from Carnegie Institution, via EurekAlert: Coral reefs may start dissolving Stanford, CA— Rising carbon dioxide in the atmosphere and the resulting effects on ocean water are making it increasingly difficult for coral reefs to grow, say scientists. A study to be published online March 13, 2009 in Geophysical Research Letters by researchers at the Carnegie Institution and the Hebrew University of Jerusalem warns that if carbon dioxide reaches double pre-industrial levels, coral reefs can be expected to not just stop growing, but also to begin dissolving all over the world. ... Prospects for reefs are even gloomier when the effects of coral bleaching are included in the model. Coral bleaching refers to the loss of symbiotic algae that are essential for healthy growth of coral colonies. Bleaching is already a widespread problem, and high temperatures are among the factors known to promote bleaching. According to their model the researchers calculated that under present conditions 30 percent of reefs have already undergone bleaching and that at CO2 levels of 560 ppm (twice pre-industrial levels) the combined effects of acidification and bleaching will reduce the calcification rates of all the world's reefs by 80 percent or more.... "If we don't change our ways soon, in the next few decades we will destroy what took millions of years to create." ... Unfortunately, that's what we do every day when we drive in to work. Apocadocument permalink Mon, Mar 9, 2009 from Reuters: Rising ocean acidity cutting shell weights - study Acidifying oceans caused by rising carbon dioxide levels are cutting the shell weights of tiny marine animals in a process that could accelerate global warming, a scientist said on Monday. William Howard of the University of Tasmania in Australia described the findings as an early-warning signal, adding the research was the first direct field evidence of marine life being affected by rising acidity of the oceans. Oceans absorb large amounts of CO2 emitted by mankind through the burning of fossil fuels. The Southern Ocean between Australia and Antarctica is the largest of the ocean carbon sinks. But scientists say the world's oceans are becoming more acidic as they absorb more planet-warming CO2, disrupting the process of calcification used by sea creatures to build shells as well as coral reefs. ... Maybe they can just buy their shells at Shells "R" Us! Apocadocument permalink Sun, Mar 8, 2009 from Cape Cod Times: Man-made chemicals tied to sick lobsters In research conducted this summer, Hans Laufer found that common man-made chemicals used in plastics, detergents and cosmetics had infiltrated the blood and tissue of lobsters, making them more vulnerable to a particularly virulent strain of shell disease... "It looks like the shell has been eroded away by acid," said Robert Glenn, a state Division of Marine Fisheries senior biologist and director of the state's lobster program. Glenn said more research needs to be done to pinpoint the cause of the problem. "We don't have enough of a handle on the mechanism causing the disease," he said. First seen in Long Island Sound in the mid-1990s, the shell disease quickly spread up the coast into Southern New England and corresponded with a steep drop-off in the lobster harvest. ... Looks like acid erosion, quacks like acid erosion... I think it's a duck. Apocadocument permalink Sun, Mar 8, 2009 from Telegraph.co.uk: The toxic sea: the other CO2 problem They are calling it "the other CO2 problem". Its victim is not the polar bear spectacularly marooned on a melting ice floe, or an eagle driven out of its range, nor even a French pensioner dying of heatstroke. What we have to mourn are tiny marine organisms dissolving in acidified water. In fact we need to do rather more than just mourn them. We need to dive in and save them. Suffering plankton may not have quite the same cachet as a 700-kilo seal-eating mammal, but their message is no less apocalyptic. What they tell us is that the chemistry of the oceans is changing, and that, unless we act decisively, the limitless abundance of the sea within a very few decades will degrade into a useless tidal desert. ... On average, each person on Earth contributes a tonne of carbon to the oceans every year. The result is a rapid rise in acidity -- or a reduction in pH, as the scientists prefer to express it -- which, as it intensifies, will mean that marine animals will be unable to grow shells, and that many sea plants will not survive. With these crucial links removed, and the ecological balance fatally disrupted, death could flow all the way up the food chain, through tuna and cod to marine mammals and Homo sapiens. As more than half the world's population depends on food from the sea for its survival, this is no exaggeration. ... It's just a little evolutionary pressure. Come on, species, get with it! Apocadocument permalink Thu, Feb 26, 2009 from The Daily Climate: Saving the oceans: 'Mission Possible' ...[oceanographer and coral reef geologist Jeonie] Kleypas is one of the world's experts on the effects of climate change on the world's coral reefs, testifying to Congress and presenting papers around the world. She believes that societies must immediately and drastically reduce worldwide carbon emissions, but is also training her research to see if there are ways "to bolster coral reef health so they can weather the climate crisis."....Like many scientists, she struggles to find ways to impart the importance of biodiversity to humans in ways both poetic and prosaic. Losing a third of the coral species on a reef, she says, "is like losing a third of the colors from a Van Gogh painting." Reaching for a different demographic, she adds, "The loss of biodiversity is like having a football team with only tight ends." ... Or maybe it's like losing all the vowels from the word " p c l ps ." Apocadocument permalink Wed, Feb 25, 2009 from Courier-Mail (Australia): Human activity seen as a threat to marine echinoderms CREATURES are falling victim to human activities, and scientists say it could interfere with the evolutionary process and lead to extinctions. Known as echinoderms, the species are essential for keeping ecosystems healthy and if their populations either crash or multiply, degraded seascapes may result.... "Each of these 28 cases was experiencing difficulties because of human activity, including over-fishing, nutrient run-off from the land, species introductions and climate change," Dr Uthicke said. "We suggest that human-induced disturbance, through its influence on changes to echinoderm population densities, may go beyond present ecosystems impacts and alter future evolutionary trends." In the Caribbean, sea urchins have died off and on the Great Barrier Reef an over-fished sea cucumber area closed six years ago has not recovered. ... Starfish, sea urchins, sand dollars, even sea cucumbers -- all the cute sea critters. Time for a save-the-echinoderms campaign? Apocadocument permalink Tue, Feb 24, 2009 from AAAS: Dwindling Resources of Soil, Water and Air Require 'CDC for Planet Earth' In her plenary address to the 2009 AAAS Annual Meeting, Kieffer called for the creation of a "CDC for Planet Earth"--an organization that could respond to planetary threats such climate change with the same kind of coordination the U.S. Centers for Disease Control and Prevention showed during the SARS and bird flu outbreaks of the late 1990s.... Ocean acidification, spreading deserts, dry aquifers and degraded soils are stealth disasters, altering the planet in ways that "will undermine our survival and evolution into the civilized global society that we might become," warned Kieffer.... And for the first time in history, "societies of the whole planet are so interconnected that Planet Earth is essentially one island," where the stealth disasters of one region can become a crisis for the whole globe, she suggested. ... It doesn't take a genius to figure this stuff out -- heck, we did! Apocadocument permalink Tue, Feb 24, 2009 from Science Alert (Australia): Warm oceans slow coral growth It's official: the biggest and most robust corals on the Great Barrier Reef (GBR) have slowed their growth by more than 14 per cent since the "tipping point" year of 1990. Evidence is strong that the decline has been caused by a synergistic combination of rising sea surface temperatures and ocean acidification.... "It is cause for extreme concern that such changes are already evident, with the relatively modest climate changes observed to date, in the world's best protected and managed coral reef ecosystem," according to AIMS scientist and co-author Dr Janice Lough.... "The data suggest that this severe and sudden decline in calcification is unprecedented in at least 400 years," said AIMS scientist and principal author Dr Glenn De'ath. ... I don't wanna hear no scientists saying "severe and sudden" or "extreme concern" about anything. Apocadocument permalink Mon, Feb 23, 2009 from American Chemical Society: Off-Balance Ocean Marine scientists who have measured the pH of the ocean's surface waters for decades see that it has been dropping. They say that the pH is currently about 8.1, down from about 8.2 in the 18th century. If CO2 emissions continue at current rates, they expect the pH to fall by approximately 0.3 more units in the next 50-100 years. And as the ocean becomes more acidic, scientists anticipate myriad changes to the ocean's chemistry.... For example, almost all reaction rates are pH dependent, so acidification may change processes in the ocean ranging from enzyme activity to the adsorption of metals onto particle surfaces in seawater... Many sea organisms without shells, such as anemones and jellyfish, may be especially susceptible to even the smallest changes in ocean pH because their internal pH tends to vary with that of the surrounding seawater. These organisms cannot actively regulate their internal pH as mammals do. ... ApocHaiku: we apologize that our carbon bootprint now tramples the ocean Apocadocument permalink Fri, Feb 20, 2009 from SciDev.net: World's fisheries face climate change threat Researchers examined the fisheries of 132 nations to determine which were the most vulnerable, based on the potential environmental impact of climate change, how dependent their economy and diet were on fisheries, and the capacity of the country to adapt. Climate change can affect the temperature of inland lakes, the health of reefs and how nutrients circulate in the oceans, the researchers say. They identified 33 countries as "highly vulnerable" to the effects of global warming on fisheries. These countries produce 20 per cent of the world's fish exports and 22 are already classified by the UN as "least developed". Inhabitants of vulnerable countries are also more dependent on fish for protein -- 27 per cent of dietary protein is gained from fish, compared with 13 per cent in other countries. Two-thirds of the most vulnerable nations identified are in tropical Africa. ... Surely Nature operates on the same supply/demand laws that the economy does: it'll just produce more fisheries. Because poor people demand it. Apocadocument permalink Wed, Feb 18, 2009 from NOAA, via Mongabay: CO2 levels rise to a new record Atmospheric carbon dioxide concentrations climbed 2.28 parts-per-million (ppm) in 2008 to the highest level in at least 650,000 years -- and possibly 20 million years -- reports NOAA. The average annual growth rate of CO2 concentrations this decade is now 2.1 ppm a year or 40 percent higher than that of the 1990s. CO2 emissions from the burning of fossil fuels are increasing at four times the rate of the previous decade.... Some scientists, including James Hansen of NASA's Goddard Institute for Space Studies, warn that CO2 levels must be kept below 350 ppm to avoid serious impacts from climate change. CO2 concentrations are presently around 386 ppm. ... Guinness didn't want to see this. Apocadocument permalink Mon, Feb 2, 2009 from New York Times (US): Rising Acidity Is Threatening Food Web of Oceans, Science Panel Says [As CO2] dissolves, it makes seawater more acidic. Now an international panel of marine scientists says this acidity is accelerating so fast it threatens the survival of coral reefs, shellfish and the marine food web generally.... "Severe damages are imminent," the group said Friday in a statement summing up its deliberations at a symposium in Monaco last October. The statement, called the Monaco Declaration, said increasing acidity was interfering with the growth and health of shellfish and eating away at coral reefs, processes that would eventually affect marine food webs generally. Already, the group said, there have been detectable decreases in shellfish and shell weights, and interference with the growth of coral skeletons. ... Mother-of-pearl is becoming Cousin-of-pearl. Apocadocument permalink Fri, Jan 30, 2009 from BBC: Acid oceans 'need urgent action' The world's marine ecosystems risk being severely damaged by ocean acidification unless there are dramatic cuts in CO2 emissions, warn scientists. More than 150 top marine researchers have voiced their concerns through the "Monaco Declaration", which warns that changes in acidity are accelerating.... It says pH levels are changing 100 times faster than natural variability. ... The researchers warn that ocean acidification, which they refer to as "the other CO2 problem", could make most regions of the ocean inhospitable to coral reefs by 2050, if atmospheric CO2 levels continue to increase. They also say that it could lead to substantial changes in commercial fish stocks, threatening food security for millions of people. "The chemistry is so fundamental and changes so rapid and severe that impacts on organisms appear unavoidable," said Dr James Orr, chairman of the symposium. "The questions are now how bad will it be and how soon will it happen." ... Isn't the ocean too big to fail? Apocadocument permalink Tue, Jan 27, 2009 from NPR: Global Warming Is Irreversible, Study Says "People have imagined that if we stopped emitting carbon dioxide that the climate would go back to normal in 100 years or 200 years. What we're showing here is that's not right. It's essentially an irreversible change that will last for more than a thousand years," Solomon says. This is because the oceans are currently soaking up a lot of the planet's excess heat -- and a lot of the carbon dioxide put into the air. The carbon dioxide and heat will eventually start coming out of the ocean. And that will take place for many hundreds of years.... The answer, he says, is sooner rather than later. Scientists have been trying to advise politicians about finding an acceptable level of carbon dioxide in the atmosphere. The new study suggests that it's even more important to aim low. If we overshoot, the damage can't be easily undone. Oppenheimer feels more urgency than ever to deal with climate change, but he says that in the end, setting acceptable limits for carbon dioxide is a judgment call. ... I'll get back to ya. Apocadocument permalink Mon, Jan 12, 2009 from Telegraph.co.uk: Climate change fears spiral as warmer seas 'absorbing less carbon dioxide' Warmer waters -- themselves said to be the result of the changing climate -- are believed to have caused the decline. Samples taken from the Sea of Japan last year were compared with analysis of water collected in the past. The findings suggest that it is absorbing only half as much carbon dioxide as during the 1990s. It could mean that governments would have to increase targets for cutting carbon emissions more sharply than previously thought. Scientists believe that a slight change in the temperature of the water appears to have reduced a process known as "ventilation" which helps reabsorb about a quarter of the carbon dioxide produced around the world. ... The good news: less ocean acidification. The bad news: more global warming. Apocadocument permalink Sat, Jan 3, 2009 from Science Daily (US): Hot Southern Summer Threatens Coral With Massive Bleaching Event A widespread and severe coral bleaching episode is predicted to cause immense damage to some of the world's most important marine environments over the next few months. A report from the US Government's National Oceanic and Atmospheric Administration (NOAA) predicts severe bleaching for parts of the Coral Sea, which lies adjacent to Australia's Great Barrier Reef, and the Coral Triangle, a 5.4 million square kilometre expanse of ocean in the Indo-Pacific which is considered the centre of the world's marine life. "This forecast bleaching episode will be caused by increased water temperatures and is the kind of event we can expect on a regular basis if average global temperatures rise above 2 degrees," said Richard Leck, Climate Change Strategy Leader for WWF's Coral Triangle Program.... The bleaching, predicted to occur between now and February, could have a devastating impact on coral reef ecosystems, killing coral and destroying food chains. There would be severe impacts for communities in Australia and the region, who depend on the oceans for their livelihoods. ... That is one massive canary. Apocadocument permalink Fri, Jan 2, 2009 from New York Times: Signs of Another California Drought Year SAN FRANCISCO-- California, just finished with its second consecutive year of drought, might well be facing a third. If so, state authorities may be forced to impose water rationing on farmers, homes and businesses. With the rainy season well under way, early partial measurements indicate that the amount of water stored in the Sierra snowpack, the state's natural reservoir, is higher than the amount at this time last year but well below average, said the state's meteorologist, Elissa Lynn. The deficit can be made up if January, February and March are full of big Pacific storms. But this week, the National Oceanic and Atmospheric Administration announced that the weather phenomenon known as La Nina, which is characterized by cooler waters in the western Pacific Ocean and drier conditions, had returned for the second consecutive year. ... That durn La Nina .... she just won't go away! Apocadocument permalink Fri, Jan 2, 2009 from The Economist: Troubled waters -- the ocean collapse The evidence abounds. The fish that once seemed an inexhaustible source of food are now almost everywhere in decline: 90 percent of large predatory fish (the big ones such as tuna, swordfish and sharks) have gone, according to some scientists. In estuaries and coastal waters, 85 percent of the large whales have disappeared, and nearly 60 percent of the small ones. Many of the smaller fish are also in decline. Indeed, most familiar sea creatures, from albatrosses to walruses, from seals to oysters, have suffered huge losses. All this has happened fairly recently. Cod have been caught off Nova Scotia for centuries, but their systematic slaughter began only after 1852; in terms of their biomass (the aggregate mass of the species), they are now 96 percent depleted. The killing of turtles in the Caribbean (99 percent down) started in the 1700s. The hunting of sharks in the Gulf of Mexico (45-99 percent, depending on the variety) got going only in the 1950s. ... You mean the ocean is a finite resource? Why didn't anyone tell me? Apocadocument permalink Thu, Jan 1, 2009 from Guardian (UK): Slowdown of coral growth extremely worrying, say scientists Coral growth across the Great Barrier Reef has suffered a "severe and sudden" slowdown since 1990 that is unprecedented in the last four centuries, according to scientists. The researchers analysed the growth rates of 328 coral colonies on 69 individual reefs that make up the 1,250 mile-long Great Barrier Reef, off north-east Australia. They found that the rate at which the corals were laying down calcium in their skeletons dropped by 14.2 percent between 1990 and 2005.... the most probable explanation for the drop in the growth rate of the corals' calcium carbonate skeletons is acidification of the water due to rising carbon dioxide levels in the atmosphere. More acid water makes it more difficult for the coral polyps to grab the minerals they need to build their skeletons from the sea water. ... Please don't tell me "more study is needed..."! Apocadocument permalink Wed, Dec 31, 2008 from The Economist: A sea of troubles -- an ocean wrapup The worries begin at the surface, where an atmosphere newly laden with man-made carbon dioxide interacts with the briny. The sea has thus become more acidic, making life difficult, if not impossible, for marine organisms with calcium-carbonate shells or skeletons. These are not all as familiar as shrimps and lobsters, yet species like krill, tiny shrimp-like creatures, play a crucial part in the food chain: kill them off, and you may kill off their predators, whose predators may be the ones you enjoy served fried, grilled or with sauce tartare. Worse, you may destabilise an entire ecosystem.... And then there are the red tides of algal blooms, the plagues of jellyfish and the dead zones where only simple organisms thrive. All of these are increasing in intensity, frequency and extent. All of these, too, seem to be associated with various stresses man inflicts on marine ecosystems: overfishing, global warming, fertilisers running from land into rivers and estuaries, often the whole lot in concatenation. ... Concatenation, concentration, feedback loops, the underwater stripmining of biomass.... Lucky we can't see it, or we'd be adding our tears to the salt in the sea! Apocadocument permalink Fri, Dec 19, 2008 from Christian Science Monitor: World's oceans turning acidic faster than expected Parts of the world's oceans appear to be acidifying far faster than scientists have expected. The culprit: rising levels of carbon dioxide in the atmosphere pumped into the air from cars, power plants, and industries. The Southern Ocean represents one of the most high-profile examples. There, scientists estimate that the ocean could reach a biologically important tipping point in wintertime by 2030, at least 20 years earlier than scientists projected only three years ago. Among the vulnerable: a tiny form of sea snail that serves as food for a wide range of fish. Similar trends are appearing in more temperate waters, say researchers. The studies suggest the CO2-emission targets being considered for a new global warming treaty are likely to be inadequate to prevent significant, long-lasting changes in some ocean basins. ... The only thing going slower than expected is us, doing something about it! Apocadocument permalink Tue, Dec 16, 2008 from New Scientist: Jumbo squids in acid: What future oceans hold in store Swimming through warmer, more acidic oceans will feel like swimming through molasses for jumbo squid.... Jumbo squid blood carries very little oxygen -- with each cycle through its body, the oxygen can be used up entirely. This means they must "recharge" constantly, and makes the animals very dependent on what oxygen is available in the water around them. Yet, the warmer water is, the smaller the amount of oxygen it can hold.... To make matters worse, the squid's blood cells are able to carry even less oxygen in acidic water.... Last year, the first study to simultaneously track a predator and its prey suggested that sperm whales may take advantage of moments when jumbo squid slow down to catch them. ... It's like a bad dream -- the predator is gaining on you, and you seem to be running in slo-mo... Apocadocument permalink Thu, Dec 11, 2008 from Mongabay: Climate change will transform the chemical makeup of the ocean "The ocean's calcium cycle is closely linked to atmospheric carbon dioxide and the processes that control seawater's acidity," co-author of the paper, Ken Caldeira, adds. Already, increasing acidification of the ocean is decimating certain populations of coral. In past research Caldeira has pointed out that an increasingly acidic ocean will doom the world's fishing industry and degrade 98 percent of the world's coral reefs in less than fifty years.... "as CO2 increases and weather patterns shift, the chemical composition of our rivers will change, and this will affect the oceans. This will change the amount of calcium and other elements in ocean salts." "What we learned from this work is that the ocean system is much more sensitive to climate change than we have previously appreciated," Griffith adds. ... At least nothing in the ocean depends on calcium! Whew! Apocadocument permalink Wed, Dec 10, 2008 from AFP: Fifth of world's corals already dead, say experts Almost a fifth of the planet's coral reefs have died and carbon emissions are largely to blame, according to an NGO study released Wednesday. The report, released by the Global Coral Reef Monitoring Network, warned that on current trends, growing levels of greenhouse gases will destroy many of the remaining reefs over the next 20 to 40 years. "If nothing is done to substantially cut emissions, we could effectively lose coral reefs as we know them, with major coral extinctions," said Clive Wilkinson, the organisation's coordinator. ... Any way to turn back time, so we might learn from our mistakes? Apocadocument permalink Mon, Dec 8, 2008 from Science Daily (US): California's Deep Sea Secrets: New Species Found, Human Impact Revealed Scientists from Scripps Institution of Oceanography at UC San Diego returning from research expeditions in Mexico have captured unprecedented details of vibrant sea life and ecosystems in the Gulf of California, including documentations of new species and marine animals previously never seen alive. Yet the expeditions, which included surveys at unexplored depths, have revealed disturbing declines in sea-life populations and evidence that human impacts have stretched down deeply in the gulf.... Large schools of fish documented in earlier expeditions at locations such as El Bajo seamount have vanished.... "We have lots of evidence of ghost nets with trapped animals at many depths, along with pollution, including beer cans, in each deep location we studied." ... Ghost nets drink beer and pollution? Apocadocument permalink Mon, Nov 24, 2008 from University of Chicago, via EurekAlert: Ocean growing more acidic faster than once thought University of Chicago scientists have documented that the ocean is growing more acidic faster than previously thought. In addition, they have found that the increasing acidity correlates with increasing levels of atmospheric carbon dioxide, according to a paper published online by the Proceedings of the National Academy of Sciences on Nov. 24.... "The acidity increased more than 10 times faster than had been predicted by climate change models and other studies," Wootton said. "This increase will have a severe impact on marine food webs and suggests that ocean acidification may be a more urgent issue than previously thought, at least in some areas of the ocean." The ocean plays a significant role in global carbon cycles. When atmospheric carbon dioxide dissolves in water it forms carbonic acid, increasing the acidity of the ocean. During the day, carbon dioxide levels in the ocean fall because photosynthesis takes it out of the water, but at night, levels increase again. The study documented this daily pattern, as well as a steady increase in acidity over time. ... It burns! It burns! Apocadocument permalink Tue, Nov 11, 2008 from The Daily Climate: The ocean's acid test ...according to a new report issued today by Oceana ... today’s ocean chemistry is already hostile for many creatures fundamental to the marine food web. The world’s oceans – for so long a neat and invisible sink for humanity’s carbon dioxide emissions – are about to extract a price for all that waste. The effects are not local: Entire ecosystems threaten to literally crumble away as critters relying on calcium carbonate for a home – from corals to mollusks to the sea snail – have a harder time manufacturing their shells. Corals shelter millions of species worldwide, while sea snails account for upwards of 45 percent of the diet of pink salmon. ... For Whom the Shell Tolls....? it tolls for us all! Apocadocument permalink Thu, Oct 30, 2008 from NASA via ScienceDaily: Climate Change Seeps Into The Sea Good news has turned out to be bad. The ocean has helped slow global warming by absorbing much of the excess heat and heat-trapping carbon dioxide that has been going into the atmosphere since the start of the Industrial Revolution. All that extra carbon dioxide, however, has been a bitter pill for the ocean to swallow. It's changing the chemistry of seawater, making it more acidic and otherwise inhospitable, threatening many important marine organisms. ... If only the bad news turned out to be good. Apocadocument permalink Mon, Oct 27, 2008 from Guardian (UK): Climate deal may be too late to save coral reefs, scientists warn A new global deal on climate change will come too late to save most of the world's coral reefs, according to a US study that suggests major ecological damage to the oceans is now inevitable. Emissions of carbon dioxide are making seawater so acidic that reefs including the Great Barrier Reef off Australia could begin to break up within a few decades, research by the Carnegie Institution at Stanford University in California suggests. Even ambitious targets to stabilise greenhouse gas levels in the atmosphere, as championed by Britain and Europe to stave off dangerous climate change, still place more than 90 percent of coral reefs in jeopardy. ... Baking soda. Baking soda! Apocadocument permalink Sun, Oct 5, 2008 from London Observer: Seas turn to acid as they soak up CO2 The Bay of Naples is renowned for its breathtaking beauty and glittering clear waters... But beneath the waves, scientists have uncovered an alarming secret. They have found streams of gas bubbling up from the seabed around the island of Ischia. 'The waters are like a Jacuzzi - there is so much carbon dioxide fizzing up from the seabed,' said Dr Jason Hall-Spencer, of Plymouth University. 'Millions of litres of gas bubble up every day.' The gas streams have turned Ischia's waters into acid, and this has had a major impact on sea life and aquatic plants. Now marine biologists fear that the world's seas could follow suit. ... The world's seas full of acid ... now that would be one bad trip! Apocadocument permalink Wed, Oct 1, 2008 from Science: Acidic Oceans Getting Noisy, Too The ocean is becoming a noisier place. As seawater turns more acidic, due to absorption of carbon dioxide (CO2) building up in the atmosphere, it allows sound waves to travel farther, according to new research. That's potentially bad news for a host of marine animals, including whales and dolphins, that rely on sound for hunting and communication--and that are easily stressed by background noise from ship traffic and military sonar. ... Thank goodness we can all rely on our iPods to drown it out. Apocadocument permalink Sat, Aug 23, 2008 from KUOW Radio: Oyster Larvae Dying Off at Alarming Rates The oyster industry in the Pacific Northwest could be facing serious trouble. In recent years, hatcheries have seen oyster larvae die off at unusually high rates. No one knows what's killing the young oysters, but scientists have two theories.... ONE THEORY IS THAT THE BACTERIA THRIVE IN THE SO-CALLED DEAD ZONE. THAT'S AN AREA OF LOW OXYGEN WATER THAT HAS RECENTLY APPEARED OFF THE OREGON COAST.... DAVIS SUSPECTS THE WATER IS MORE ACIDIC THAN NORMAL, BUT IT'S HARD TO SAY, SINCE SCIENTISTS HAVEN'T KEPT RECORDS OF PH LEVELS IN THE SOUND. ... Jeez, do you need to SHOUT? uh, MAYBE SO. Apocadocument permalink Wed, Aug 20, 2008 from Christian Science Monitor: New sea change forecasts present a slimy picture Earth's oceans are on the brink of massive change. You see it in such details as the hordes of Pacific mollusks that researchers have identified as ready to invade the North Atlantic as a thawing Arctic Ocean opens the way. You also see it in broad trends: A new overview warns that such relentless human impacts as overfishing or agricultural pollution -- as well as global warming -- threaten mass extinctions of marine life. Jeremy Jackson at Scripps Institution of Oceanography, who made that overview, notes that this is "not a happy picture." He says that "the only way to keep one's sanity and try to achieve real success is to carve out sectors of the problem that can be addressed in effective terms and get on with it as quickly as possible." ... Other ways to keep one's sanity: denial, rose colored glasses, blaming the victim, changing the subject. Apocadocument permalink Sat, Aug 16, 2008 from Reuters: Acid ocean imperils more than shells SYDNEY -- Rising ocean acidity could reduce fertilization of marine invertebrates and might eventually wipe out colonies of sea urchins, lobsters, mussels and oysters, according to a study. Scientists knew that ocean acidification was eating away at the shells of marine animals, but the new study has found that rising acidity hindered marine sperm from swimming to and fertilizing eggs in the ocean. ... I'd say the sperm doesn't want it bad enough! Apocadocument permalink Sun, Aug 3, 2008 from Cell Press, via EurekAlert: More acidic ocean could spell trouble for marine life's earliest stages Increasingly acidic conditions in the ocean—brought on as a direct result of rising carbon dioxide levels in the atmosphere—could spell trouble for the earliest stages of marine life, according to a new report.... " If other marine species respond similarly -- and there's no evidence yet that they don't -- then we're in trouble," said Jon Havenhand of the University of Gothenburg in Sweden. "The analogies are quite simple: we observed a 25 percent reduction in fertilization success at reduced pH, which is equivalent to a 25 percent reduction in the spawning stock of the species. Apply equivalent changes to other commercially or ecologically important species, such as lobsters, crabs, abalone, clams, mussels, or even fish, and the consequences would be far-reaching. It could be enough to 'tip' an ecosystem from one state to another." ... That is, if we haven't fished the ocean to emptiness first. Apocadocument permalink Thu, Jul 17, 2008 from Discover: Ocean Acidification: A Global Case of Osteoporosis "It all seemed so convenient: As our smokestacks and automobile tailpipes spewed ever more carbon dioxide into the air, the oceans absorbed the excess. Like a vast global vacuum cleaner, the world's seas sucked CO2 right out of the atmosphere, mitigating the dire consequences of global warming and forestalling the melting of glaciers, the submergence of coastlines, and extremes of weather from floods to droughts... The problem was that, having swallowed hundreds of billions of tons of greenhouse gases since the start of the Industrial Revolution, the oceans were becoming more acidic. And not just in a few spots. Now the chemistry of the entire ocean was shifting, imperiling coral reefs, marine creatures at the bottom of the food chain, and ultimately the planet's fisheries." ... From global vacuum cleaner ... to global heartbreak. Apocadocument permalink Mon, Jul 7, 2008 from Science, via Science Daily: Acidifying Oceans Add Urgency To Carbon Dioxide Cuts [H]uman emissions of carbon dioxide have begun to alter the chemistry of the ocean--often called the cradle of life on Earth. The ecological and economic consequences are difficult to predict but possibly calamitous, warn a team of chemical oceanographers in the July 4 issue of Science, and halting the changes already underway will likely require even steeper cuts in carbon emissions than those currently proposed to curb climate change.... Although the ocean's chemical response to higher carbon dioxide levels is relatively predictable, the biological response is more uncertain. The ocean's pH and carbonate chemistry has been remarkably stable for millions of years--much more stable than temperature. ... We're in for an ocean of troubles. Apocadocument permalink Sun, Jul 6, 2008 from Nature Geoscience, via ScienceDaily: New Pathway For Methane Production In The Oceans Discovered A new pathway for methane production has been uncovered in the oceans, and this has a significant potential impact for the study of greenhouse gas production on our planet. The article, published in the journal Nature Geoscience, reveals that aerobic decomposition of an organic, phosphorus-containing compound, methylphosphonate, may be responsible for the supersaturation of methane in ocean surface waters.... Interest in this research crosses many specialties. Oceanographers will be excited because it offers a solution to the long standing methane paradox. Microbiologists will be excited because it shows an aerobic production pathway of methane, which goes against everything that is currently known about methane, and Climatologists will be interested because it's a potent greenhouse gas that we don't have constraints on, and this new pathway is very exciting. ... Exciting indeed. Oh, and scary as hell, too. Apocadocument permalink Tue, Jul 1, 2008 from Xinhua (China): Crustaceans, squid found where once there were fish Researchers are pointing fingers at global warming again, saying it has caused dramatic shifts in some aquatic communities in which fish populations die off and crabs, lobsters and squid take over. The finding comes from a new analysis of 50 years worth of fish-trawling data collected in Narragansett Bay and adjacent Rhode Island Sound but may apply elsewhere, researchers said.... "We think there has been a shift in the food web resulting in more of the productivity being consumed in the water column," Collie explained. "Phytoplankton are increasingly being grazed by zooplankton, which are then eaten by planktivorous fish, rather than the phytoplankton sinking to the bottom and being consumed by bottom fish. It's a rerouting of that production from the bottom to the top." ... A warming tide lifts all phytoplankton. It's morning in the top layer. The "trickle up" theory in action. Apocadocument permalink Thu, Jun 12, 2008 from Seattle Times: Acidified ocean water rising up nearly 100 years earlier than scientists predicted In surveys from Vancouver Island to the tip of Baja California, the scientists found the first evidence that large amounts of corrosive water are reaching the continental shelf -- the shallow sea margin where most marine creatures live. In some places, including Northern California, the acidified water was as little as four miles from shore. "What we found ... was truly astonishing," said oceanographer Richard Feely, of [NOAA's] Pacific Marine Environmental Laboratory in Seattle. "This means ocean acidification may be seriously impacting marine life on the continental shelf right now." ... We call this ocean reflux. Apocadocument permalink Sat, Jun 7, 2008 from Sydney Morning Herald (Australia): Putting sea life to the acid test "A new report by the Antarctic research centre, released at the Hobart meeting, says that about half the fossil fuel carbon dioxide released into the atmosphere by humans has now dissolved into the oceans. If we keep pumping carbon dioxide into the atmosphere at the current projections, by 2100 the ocean acidification will be three times that experienced at the end of the glacial period, 15,000 years ago." ... Whoa, dude, where's the other half? Apocadocument permalink Thu, Jun 5, 2008 from StraightGoods: Climate change casts marine science adrift Climate change is altering the world's oceans in so many ways scientists cannot keep pace, and as a result there is no comprehensive vision of its present and future impacts, say experts. Rising sea levels, changes in hurricane intensity and seasonality, declines in fisheries and corals are among the many effects attributed to climate change. In an attempt to put some order to their disconcerting findings, more than 450 scientists from some 60 countries gathered in the northern Spanish city of Gijón for the symposium "Effects of Climate Change on the World's Oceans...." ... On the surface, it looks the same as it ever was. Apocadocument permalink Wed, May 28, 2008 from The New York Times via Associated Press: Scientists warn of rising Pacific Coast acidity "A panel of marine scientists are warning that the Pacific Coast's increasing acidity could disrupt food chains and threaten the Pacific Northwest's shellfish industry... The data indicates acidic water is appearing along the Pacific Coast decades earlier than expected. The acidified water does not pose a threat to humans, but it could dissolve the shells of clams, oysters and other shellfish." ... Whoa, dude. Not a threat to humans? WE ARE ALL CONNECTED. Apocadocument permalink Sat, May 24, 2008 from Science News: Ocean reflux "Seawater with the potentially shell-disrupting chemistry predicted for the open ocean after 2050 has already surfaced along North America's West Coast, scientists report. In spring 2007, the corrosive, deep water rose temporarily to the Pacific surface some 40 kilometers roughly west of the California-Oregon border, says Richard Feely of the National Oceanic and Atmospheric Administration's Pacific Marine Environmental Laboratory in Seattle." ... We can't believe we ate the whoooooole thing. Apocadocument permalink Fri, May 23, 2008 from European Science Foundation, via EurekAlert: Ocean acidification -- another undesired side effect of fossil fuel-burning "Ocean acidification is more rapid than ever in the history of the earth and if you look at the pCO2 (partial pressure of carbon dioxide) levels we have reached now, you have to go back 35 million years in time to find the equivalents"... A maximum allowed change in pH, where the system is still controllable, needs to be found. This is a major challenge considering the multifaceted unknowns that still are to be clarified. This so-called "tipping point" is currently estimated to allow a drop of about 0.2 pH units, a value that could be reached in as near as 30 years. More research and further modeling needs to be undertaken to verify the predictions. ... Um, yeah. More research is needed to determine this point before we tip it. Apocadocument permalink Fri, May 16, 2008 from Science, via EurekAlert: Atmosphere threatened by pollutants entering ocean, prof says Human-caused atmospheric nitrogen compounds are carried by wind and deposited into the ocean, where they act as a fertilizer and lead to increased production of marine plant life. The increase in plant life causes more carbon dioxide to be drawn from the atmosphere into the ocean. This process results in the removal of about 10 percent of the human-caused carbon dioxide in the atmosphere, thus potentially reducing the climate warming potential, according to the team's paper.... However, some of the nitrogen deposited in the ocean is re-processed to form another nitrogen compound called nitrous oxide, which is then released back into the atmosphere from the ocean. Nitrous oxide is a powerful greenhouse gas itself – about 300 times more powerful per molecule than carbon dioxide – thus cancelling out about two-thirds of the apparent gain from the carbon dioxide removal, Duce explained. "But of course, the whole system is so complex that we're still rather unsure about what some of the other impacts might be within the ocean," he said. ... You mean we don't know what we're doing? Apocadocument permalink Wed, Apr 9, 2008 from Reuters: Warming trends rise in large ocean areas: study "Warming trends in a third of the world's large ocean regions are two to four times greater than previously reported averages, increasing the risk to marine life and fisheries, a U.N.-backed environmental study said. Overfishing, coastal pollution and degradation of water quality were common in all 64 large marine ecosystems studied by scientists who contributed to the U.N. Environmental Program report presented at an international conference on oceans, coasts and islands in Vietnam this week." ... That fish are gonna be so hot you won't even need to cook 'em before you eat 'em! Apocadocument permalink Tue, Feb 19, 2008 from The Australian: Snail loss catastrophic for food chain "GLOBAL warming is threatening the future of a tiny marine snail which, if lost, could trigger a catastrophic collapse of Antarctica's food chain, experts say. Pteropods have been dubbed the "potato chip" of the oceans because they provide food for so many different species. But the lentil-sized snails - eaten by fish and other lower life forms, which are in turn eaten by species higher up the food chain - are highly sensitive to temperature and acidity, both of which are affected by climate change. Carbon dioxide building up in the atmosphere is expected to make the oceans more acidic. This could have dire consequences for pteropods, impairing their ability to make shells." ... They call these snails the "potato chips" of the oceans -- bet they're delicious with that tasty chicken of the sea dish. Apocadocument permalink Fri, Feb 15, 2008 from Seattle Post-Intelligencer: Scientists fear Tipping Point for Pacific Ocean "Where scientists previously found a sea bottom abounding with life, two years ago they discovered the rotting carcasses of crabs, starfish and sea worms, swooshing from side to side in the current. Most fish had fled -- and those that didn't or couldn't joined the deathfest on the sea floor. Extraordinarily low oxygen levels were to blame -- swept up from the deep ocean into normally productive waters just off the Pacific Northwest coast by uncharacteristically strong winds....It looks like the Pacific has reached a "tipping point," a threshold where low-oxygen levels are becoming the rule, researchers said." ... The scientists conclude the ocean may be "poised for significant reorganization" -- sciencespeak for "we're screwed." Apocadocument permalink Thu, Feb 14, 2008 from Associated Press: Study says people impact all oceans "Water, water, everywhere, nor any drop pristine, might be the lament of today's Ancient Mariner. Oceans cover more than 70 percent of the planet, and every single spot has been affected by people in some way. Researchers studying 17 different activities ranging from fishing to pollution compiled a new map showing how and where people have impacted the seas. Our results show that when these and other individual impacts are summed up, the big picture looks much worse than I imagine most people expected. It was certainly a surprise to me," said lead author Ben Halpern, an assistant research scientist at the National Center for Ecological Analysis and Synthesis at the University of California, Santa Barbara." ... Oh, those scientists....always the last to know. Apocadocument permalink Fri, Feb 8, 2008 from Salt Lake Tribune: Carbon dioxide could saturate seas first, kill plant life that supplies oxygen "Greenhouse emissions' warming effect on the atmosphere is bad enough, but their bigger threat is the ecological chaos they are causing as the world's oceans become more acidic, according to a marine scientist. Oceans are absorbing the glut of atmospheric carbon dioxide -- stemming from two centuries of rampant burning of fossil fuels -- at the rate of 1 million metric tons an hour. Reacting with seawater, the absorbed carbon dioxide forms carbonic acid and throws marine chemistry out of whack. Without a major effort to curb emissions, massive die-off will occur in coral reefs, the shells of crucial mollusk species will dissolve and key marine plant life, which produces half the world's atmospheric oxygen, will disappear..." ... This article covered a visiting lecturer Marcia McNutt, a geophysicist who heads California's Monterey Bay Aquarium Research Institute. We bet everybody went out drinking after this cheery talk. Apocadocument permalink Fri, Dec 14, 2007 from Science Daily (US): Carbon Crisis lethal for coral reefs "If world leaders do not immediately engage in a race against time to save the Earth's coral reefs, these vital ecosystems will not survive the global warming and acidification predicted for later this century. That is the conclusion of a group of marine scientists from around the world in a major new study published in the journal Science on Dec. 13.... "This crisis is on our doorstep, not decades away. We have little time in which to respond, but respond, we must!" says Professor Ove Hoegh-Guldberg, lead author of the Science paper, The Carbon Crisis: Coral Reefs under Rapid Climate Change and Ocean Acidification." ... When any highly respected scientist uses an (!) exclamation mark, perk up your ears. They were trained in Respected Scientist School never to do that. Apocadocument permalink Tue, Dec 11, 2007 from Journal of Carbon Balance and Management: Projected climate change impact on oceanic acidification "Future projections of ocean acidification will therefore mainly be dependent on the future level of atmospheric CO2. The consequences of a small but sustained decrease in oceanic pH on marine phytoplankton are virtually unknown. It will be important for marine ecologists in the future to better understand the sensitivities of phytoplankton growth to pH in particular, so as to better quantify the likely future biological changes at the regional and global scale." ... Our favorite part from the abstract (as only scientists could say it): "This suggests the only way to slowdown or mitigate the potential biological consequences of future ocean acidification is to significantly reduce fossil-fuel emissions of CO2 to the atmosphere." Apocadocument permalink Copyright 2009 The Apocadocs.com