I once saw this same kind of question in a physics book talking about the coefficient of expansion of steel. If you circled the earth with a band of steel and fit it tightly to the earth, then lined up people all the way around the earth to breathe warm air on it, it would raise the ring something like 20 or 30 feet off the surface.
coefficient of expansion of steel
I have that one tattooed on my wrist, well almost.
One inch per one hundred feet one hundred degrees F.
Close enough to tell if you screwed up or are about to.