Atmospheric CO2 (IMAGE)

University of Utah

Atmospheric CO2

Caption

This graphic indicates Earth’s atmospheric concentrations of CO2, expressed in parts per million (ppm), throughout the Cenozoic era from pre-industrial times back 65 million years. These are estimates based on proxies encoded in the geological record. The color-coded bars represent global temperature reconstructed from independent proxy data.  The dashed line represents where CO2 concentrations stand today at 420 ppm. Credit: Gabe Bowen, University of Utah.

 

Credit

Gabe Bowen, University of Utah

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