ApocaDocuments (6) matching "unintended consequences" from this week
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Sun, Feb 22, 2009
from Milwaukee Journal Sentinel:
Great Lakes scourge infects West
...Zebra and quagga mussels have been making a particular mess of the Great Lakes ecosystem and economy since they were discovered in the late 1980s. The filter-feeding machines have cost this region billions of dollars by plugging industrial water intake pipes, starving fish populations and spawning noxious algae outbreaks that have trashed some of the Midwest's most prized shoreline.
For nearly two decades the western U.S. was spared this havoc.
No more.
The first quagga mussel west of the Continental Divide was discovered on Jan. 6, 2007. It was likely a stowaway hiding on the hull or in the bilge water of a Midwestern pleasure boat pulled across the Great Plains, over the Rockies and down a boat ramp at Lake Mead near Las Vegas, where a marina worker found some suspicious shells clinging to an anchor.... What took decades to unfold in the Great Lakes has played out in a matter of months in Lake Mead. Quaggas can lay eggs six or seven times a year in the warmer water, compared with once or twice a year in the Great Lakes.
If you drained Lake Mead above Hoover Dam, says National Park Service biologist Bryan Moore, it would reveal that brown canyon walls that were mussel-free just two years ago are now black with quaggas at densities of up to 55,000 per square meter. ...
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Quaggas sound like a possible renewable resource to me.
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Wed, Feb 18, 2009
from University of Georgia, via EurekAlert:
Link between unexploded munitions in oceans and cancer-causing toxins determined
During a research trip to Puerto Rico, ecologist James Porter took samples from underwater nuclear bomb target USS Killen, expecting to find evidence of radioactive matter -- instead he found a link to cancer. Data revealed that the closer corals and marine life were to unexploded bombs from the World War II vessel and the surrounding target range, the higher the rates of carcinogenic materials.
"Unexploded bombs are in the ocean for a variety of reasons -- some were duds that did not explode, others were dumped in the ocean as a means of disposal," said Porter. "And we now know that these munitions are leaking cancer-causing materials and endangering sea life." ... According to research conducted in Vieques, residents here have a 23 percent higher cancer rate than do Puerto Rican mainlanders. Porter said a future step will be "to determine the link from unexploded munitions to marine life to the dinner plate." ...
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The death industry just keeps giving and giving.
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Tue, Feb 17, 2009
from Telegraph.co.uk:
Astronomer devises giant sun shield to reverse global warming
Professor Roger Angel thinks he can diffract the power of the sun by placing trillions of lenses in space and creating a 100,000-square-mile sunshade.
Each lens will have a diffraction pattern etched onto it which will cause the sun's rays to change direction.
He intends to use electromagnetic propulsion to get the lenses into space.
If work was started immediately Prof Angel thinks the sunshield could be operation by 2040.
He said: "Things that take a few decades are not that futuristic." ...
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Perhaps the headline should be: Astronomer has great press agent!
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Tue, Feb 17, 2009
from New Era (Namibia):
Overfishing Threatens Global Shrimp Industry - FAO
WINDHOEK -- Reducing fishing capacity and limiting access to shrimp fisheries are likely to mitigate over-fishing, by-catch and seabed destruction, which the Food and Agriculture Organisation of the United Nations said are some of the major economic and environmental side effects of shrimp fishing.... [S]hrimp fishing is also associated with over-fishing, the capture of juveniles of ecologically important and economically valuable species, coastal habitat degradation, illegal trawling, and the destruction of sea-grass beds.... Estimates are that shrimp trawl fishing, particularly in tropical regions, produces large amounts -- if not the greatest amount -- of discards, or 27.3 percent (1.86 million tonnes) of discards.
The environmental impact of trawling -- and including shrimp trawling -- has been likened to forest clear-cutting and accused of being the world's most wasteful fishing practice.
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Shift to prawns, ASAP!
Oh... wait...
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Tue, Feb 17, 2009
from New York Times:
The Unintended Consequences of Changing Nature's Balance
In 1985, Australian scientists kicked off an ambitious plan: to kill off non-native cats that had been prowling the island's slopes since the early 19th century. The program began out of apparent necessity -- the cats were preying on native burrowing birds. Twenty-four years later, a team of scientists from the Australian Antarctic Division and the University of Tasmania reports that the cat removal unexpectedly wreaked havoc on the island ecosystem.
With the cats gone, the island's rabbits (also non-native) began to breed out of control, ravaging native plants and sending ripple effects throughout the ecosystem. The findings were published in the Journal of Applied Ecology online in January. ...
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In the Battle of the Invasives, nothing wins.
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Mon, Feb 16, 2009
from Associated Press:
British, French nuclear subs collide in Atlantic
LONDON -- Nuclear submarines from Britain and France collided deep in the Atlantic Ocean this month, authorities said Monday in the first acknowledgment of a highly unusual accident that one expert called the gravest in nearly a decade.
Officials said the low-speed crash did not damage the vessels' nuclear reactors or missiles or cause radiation to leak. But anti-nuclear groups said it was still a frightening reminder of the risks posed by submarines prowling the oceans powered by radioactive material and bristling with nuclear weapons.
The first public indication of a mishap came when France reported in a little-noticed Feb. 6 statement that one of its submarine had struck a submerged object -- perhaps a shipping container. But confirmation of the accident only came after British media reported it.
France's defense ministry said Monday that the sub Le Triomphant and the HMS Vanguard, the oldest vessel in Britain's nuclear-armed submarine fleet, were on routine patrol when they collided in the Atlantic this month. It did not say exactly when, where or how the accident occurred. ...
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Whoa. Two satellites just collided recently, too. Sounds like Machines Gone Wild!
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