July 1, 2009

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Existing climate models indicate that over the past 24 million years, geological conditions should have caused carbon dioxide levels in the Earth's atmosphere to plummet, possibly leading to runaway "icehouse" conditions. Yet the planet did not entirely freeze over. Now researchers writing in the July 2, 2009, edition of the journal Nature, report on the missing piece of the puzzle--plants. Full Story

Source
Carnegie Institute for Science

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