ApocaDocuments (10) matching "global warming" from this week
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Sun, Apr 12, 2009
from National Geographic:
Changing rains
Warm air holds more water vapor -- itself a greenhouse gas -- so a hotter world is a world where the atmosphere contains more moisture. (For every degree Celsius that air temperatures increase, a given amount of air near the surface holds roughly 7 percent more water vapor.) This will not necessarily translate into more rain -- in fact, most scientists believe that total precipitation will increase only modestly -- but it is likely to translate into changes in where the rain falls. It will amplify the basic dynamics that govern rainfall: In certain parts of the world, moist air tends to rise, and in others, the moisture tends to drop out as rain and snow. ...
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I bet it rains ... on our parade.
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Sun, Apr 12, 2009
from TIME Magazine:
Cows With Gas: India's Contribution to Global Warming
By burping, belching and excreting copious amounts of methane - a greenhouse gas that traps 20 times more heat than carbon dioxide - India's livestock of roughly 485 million (including sheep and goats) contribute more to global warming than the vehicles they obstruct. With new research suggesting that emission of methane by Indian livestock is higher than previously estimated, scientists are furiously working at designing diets to help bovines and other ruminants eat better, stay more energetic and secrete lesser amounts of the offensive gas. ...
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Methane: the silent but deadly environmental killer...
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Fri, Apr 10, 2009
from Yale Environment 360:
Retreat of Andean Glaciers Foretells Global Water Woes
Earlier this year, the World Bank released yet another in a seemingly endless stream of reports by global institutions and universities chronicling the melting of the world's cryosphere, or ice zone. This latest report concerned the glaciers in the Andes and revealed the following: Bolivia's famed Chacaltaya glacier has lost 80 percent of its surface area since 1982, and Peruvian glaciers have lost more than one-fifth of their mass in the past 35 years, reducing by 12 percent the water flow to the country's coastal region, home to 60 percent of Peru's population.
And if warming trends continue, the study concluded, many of the Andes' tropical glaciers will disappear within 20 years, not only threatening the water supplies of 77 million people in the region, but also reducing hydropower production, which accounts for roughly half of the electricity generated in Bolivia, Peru, and Ecuador. ...
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The melting of the cryosphere just makes me weep!
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Thu, Apr 9, 2009
from BBC:
Americas on alert for sea level rise
Climate change experts in North and South America are increasingly worried by the potentially devastating implications of higher estimates for possible sea level rises.
The Americas have until now been seen as less vulnerable than other parts of the world like low-lying Pacific islands, Vietnam or Bangladesh.
But the increase in the ranges for anticipated sea level rises presented at a meeting of scientists in Copenhagen in March has alarmed observers in the region.
Parts of the Caribbean, Mexico and Ecuador are seen as most at risk. New York City and southern parts of Florida are also thought to be particularly vulnerable. ...
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Great news for the snorkeling business!
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Wed, Apr 8, 2009
from Charlotte Observer:
New beetle enlisted in fight to save Ky. forests
An aphid-like insect no bigger than an ink pen dot has been turning picturesque hemlock forests from Maine to Georgia into grotesque collections of barren trunks and broken branches.
Despite foresters' efforts to stop them, woolly adelgids have advanced south through the Appalachians like an invading army, plundering the majestic evergreens.
Having seen the carnage in other states, foresters in Kentucky are taking a new defensive tack, enlisting a species of predatory beetles native to the Pacific Northwest to devour the invaders. Can the tiny beetles, barely larger than poppy seeds, save Kentucky's hemlocks? ...
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And if that doesn't work, they call always bring in the cane toads!
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Wed, Apr 8, 2009
from Edinburgh Scotsman:
Wet summers taking a toll as butterflies suffer their worst year
BUTTERFLIES have suffered their worst year for a quarter of a century, with populations of many species plunging by more than half due to a series of wet summers.
In total 12 species -- the highest number ever recorded -- suffered their worst year since monitoring began in the mid 1970s.
They include the pearl bordered fritillary, for which Scotland is a stronghold, which saw its numbers plummet by 56 per cent in 2008. The small tortoiseshell, common in Scotland, experienced a 45 per cent decline and is becoming rare in some areas. And the orange tip, easily recognisable in Scottish gardens due to the distinctive colourings on its wings, was down 26 per cent.
A series of wet summers, as well as habitat loss, have been blamed for the decline. ...
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A world without a pearl bordered fritillary is a world I don't want to live in!
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Wed, Apr 8, 2009
from New York Times:
Oil Giants Loath to Follow Obama's Green Lead
The Obama administration wants to reduce oil consumption, increase renewable energy supplies and cut carbon dioxide emissions in the most ambitious transformation of energy policy in a generation. But the world's oil giants are not convinced that it will work. Even as Washington goes into a frenzy over energy, many of the oil companies are staying on the sidelines, balking at investing in new technologies favored by the president, or even straying from commitments they had already made.
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Obama might have to pull a "wagoner" on these oil companies, eh?
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Tue, Apr 7, 2009
from Minneapolis Star Tribune:
Climate change in Lake Superior ice
What started as a high school science fair project is the latest piece of evidence that global warming is affecting Lake Superior.
Forrest Howk, now a freshman at the University of Wisconsin in Madison, studied 150 years of data in his hometown of Bayfield, Wis., and found that the harbor's frozen season has shrunk from about 120 days to 80 days.
The findings, published in the latest issue of Journal of Great Lakes Research, are consistent with recent studies showing that maximum ice cover in the Great Lakes has decreased slowly but steadily over the years.
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When it comes to ice, Lake Superior is more like Lake Mediocre.
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Tue, Apr 7, 2009
from San Francisco Chronicle:
Arctic ice getting thinner, fading fast
Ice in the ocean surrounding the Arctic is thinner than it's been in 30 years, and there's much less of it, say scientists who are monitoring the effects of climate change. At the same time, another team of climate scientists is predicting from earlier data that the Arctic's ice cover has been melting so rapidly over the past few years that much of it could be gone within another three decades. ...
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Ice getting thinner... Humans getting fatter.... Is there a connection here?
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Mon, Apr 6, 2009
from Agence France-Presse:
Obama pledges US lead on climate change
PRAGUE (AFP) -- President Barack Obama said Sunday the United States was ready to take the lead in tackling climate change, as EU leaders pushed him to follow their ambitious targets to combat global warming.
"To protect our planet, now is the time to change the way that we use energy," Obama told a crowd gathered at Prague Castle for his only public speech during his maiden tour of Europe.
"Together we must confront climate change by ending the world's dependency on fossil fuels by tapping the power from the sources of energy like the wind and the sun and calling upon all nations to do their part.
"And I pledge to you that in this global effort the US is now ready to lead." ...
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Sometimes... you just gotta pinch yourself to make sure you're awake!
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