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    Repiglican Roast

    A spirited discussion of public policy and current issues

    Location: The mouth of being

    I'm furious about my squandered nation.

    Sunday, May 04, 2008

    Oxygen-poor ocean zones are growing

    Linked to global warming, these areas of the Pacific and Atlantic cannot sustain most marine
    life, a new study warns.

    Oxygen poor
    The study, led by Lothar Stramma at the University of Kiel in Germany, warns that the spread of hypoxic waters that suffocate marine life is consistent with climate models forecasting what would happen as greenhouse gases accumulate in the atmosphere.

    The trend, the study points out, eerily echoes a scenario that unfolded about 250 million years ago, when 95% of life on Earth went extinct after heat-trapping carbon dioxide spewing from volcanoes warmed the planet and the oceans became stripped of oxygen.

    "If you warm waters, they hold much less oxygen," said coauthor Gregory C. Johnson, an oceanographer with the federal Pacific Marine Environmental Laboratory in Seattle. "That's the same as a bottle of soda water. If you open it warm, it'll fizz all over the place. If you open it cold, it will slowly fizz out as it warms."



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