While I was reading how the EU taxes aviation companies based on carbon emissions it occurred to me that the effect of carbon emissions on global temperature etc. may depend on where the carbon is emitted.
My question is: Is it the case that the effect of the release of carbon is dependent upon the location (environment) in which it was released? (For example I could imagine that if CO2 were to be released in a rainforest the effect on the "global atmosphere" would be different than if it were emitted in an already more saturated atmosphere with less potential to utilize (or process) CO2.
Any reference to studies done on the effect of CO2 emissions relative to the environment in which it is emitted would be welcome.