CO2

“ . . . the only time in the last 20 million years that we find evidence for carbon dioxide levels similar to the modern level of 387 parts per million was 15 to 20 million years ago, when the planet was dramatically different.” Science Daily summarizes research reported yesterday on Science Express.

For a somewhat more detailed discussion of the research, see Just How Sensitive Is Earth’s Climate to Atmospheric Carbon Dioxide? in Scientific American.

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Published in: on October 9, 2009 at 11:23 am  Leave a Comment  

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