How We Know about CO₂

We have very good records of how much coal and oil we humans mined, sold and burned each year. We have known since the 1800s how much CO₂ that would release and how much that CO₂ would raise the temperature of the atmosphere. There is nothing cutting edge or controversial about those basics. The fine tuning is computing how much of the CO₂ dissolves in the oceans and the effects of other even more potent greenhouse gases such as methane.

~ Roedy (1948-02-04 age:70)