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Post by moabiter on Jan 6, 2011 7:18:22 GMT -8
Scientists fear mass extinction as oceans choke Updated Wed Dec 1, 2010 12:20am AEDT Ocean dead zones continue to grow in size and number. 120 in 1980s > 300 in 1990s > 400+ for 2000-2008 Professor Ove Hoegh-Guldberg, of the ARC Centre of Excellence for Coral Reef Studies (CoECRS) and from the University of Queensland, says there is growing evidence that declining oxygen levels in the ocean have played a major role in at least four of the planet's five mass extinctions. "Until recently the best hypothesis for them was a meteor strike," he said. Low oxygen levels, which have been found along south-eastern Australia, are known to increase stress on fishwww.abc.net.au/news/stories/2010/11/30/3080628.htm
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Post by moabiter on Jan 6, 2011 7:19:35 GMT -8
the methane clathrates are melting
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