Do negative feedback loops mostly cushion the effect of atmospheric CO2 increases?
The earth’s climate is a system that contains feedback loops. If an input variable changes in a feedback loop, it effects the system in a way that changes the input variable itself. These changes cumulatively increase in a positive feedback loop, but progressively dampen in a negative feedback loop. The concern with increasing CO2, is that more CO2 in the atmosphere will warm the earth, in turn causing more CO2 to be released due to effects such as warmer oceans, i.e. a positive feedback loop.