I don't recall where, but I recently saw something about the net effect on long-run global temperature being muddled if the tree's dark foliage absorbs more hea

I don't recall where, but I recently saw something about the net effect on long-run global temperature being muddled if the tree's dark foliage absorbs more heat than baseline for the environment. I'm not sure if that's just an asterisk indicating that the short-run effect may be a wash, or if it's clear enough to rule out some environments/tree species in favor of other choices.