Yes. So the tiny amount of reforestation doesn't affect climate change.Sure; but the reforestation also happened long before the little ice age---and happened pretty much immediately after the settlements disappeared. The forests were already there when the British arrived in the early 1600s.
I don't really know what your point is here.
I didn't claim that population densities were high enough to affect climate change. I stated the opposite.Why did you claim it was a possibility then?