The planet cooled and warmed several times, during the era of humans.
The humans advanced north into Europe as it warmed, and retreated south when it cooled.
It did so, without internal hydrocarbon burning engines, or hydrocarbon burning electrical generating plants.
No amount of fooling around on the edges, will stop mother nature’s physical laws.
One must always remember that "Mother Nature" is a bitch and does not suffer fools lightly.