800,000 years of CO2 (NOAA)

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One response to “800,000 years of CO2 (NOAA)”

1. Jeffrey Davis

   November 26, 2011

   That’s the chart that can give me insomnia. When the climate changes state due to Milankovich forcings, temps just go straight up like an elevator, and — in geological time — instantly. 13F. 14F. Just like turning on a light switch. The scary thing is that the climate forcing due to increases in GHGs is an order of magnitude larger than that from orbital changes.

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