[TigersEye]

There is definitely a correlation between the rise and fall of temperature and the rise and fall of CO2 levels.

CO2, Temperatures, and Ice Ages

(excerpted graphs from article)

The well known Temperature-CO2 relation with temperature as a driver of CO2 is easily shown:

Temperature seems to drag CO2 levels behind it like a dead cat tied to the bumper of a car.

[dhs12345]

The question is which is the cause and which is the effect? And by how much?

Have they ruled out that that increased temperatures might cause C02?

[palmer]

Looking at your chart the change in CO2 per degree change in temperature is about 10 to 1 (10 ppm for 1C change). But we have had over 100 ppm change (we’re now above 390). So the temperature can no longer be “dragging” CO2 behind it (that would require over 10C temperature rise). But rather CO2 is just going up because we are releasing it. It doesn’t have much effect on temperature because temperature reaches a peak based on convection and outgoing radiation (modulated by weather which is mostly solar controlled).