Pliocene CO2 levels

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The last time there was this much CO2 in the atmosphere, was the Pliocene, 3 million years ago.

Image from NASA. Source: uploaded in CLEAN:Teaching Climate and Energy:Teaching Climate.

Image 188805 is a 986 by 800 pixel WebP
Uploaded: Jul11 18

Last Modified: 2018-07-11 12:38:52
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