James Hansen on the Atmospheric CO2 Danger Limit

“because the Holocene, the last 10,000 years,  CO2 was only about 280ppm and if we want to keep the climate fairly similar to what it’s been in the last several thousand years then we can’t allow CO2 to go too far away from that …”

October 30, 2012

A 2008 short clip of James Hansen explaining the atmospheric CO2 danger limit is 300 ppm CO2 or less, and who is responsible for the inaction to stop it increasing.

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