The biggest control knob: Carbon dioxide in earth’s climate history

[BPSDB] By Richard B Alley of Penn State University.

This was the keynote lecture at the American Geophysical Union meeting (a vast conspiracy of scientists to find out all they can about how the Earth works) last year.

It’s a good summary of what we know about the role of CO2 in the Earth’s climate, a proof that climate scientists really do take into account all the climate changes that have happened over the Earth’s history, and why that knowledge is still bad news for us as we belch huge amounts of buried carbon into the atmosphere.

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