Wind farms cause global warming

Wind farms use the wind to get power. The wind comes from the circulation of air which cools the earth. Hot air rises and cold air falls, for this to happen there must be a flow of air from the rising air to the falling air, this flow is the wind, and we take power from this wind to power windmills. Because we take this power away the cooling is less efficient and the surface of the earth gets warmer than normal. I give a more detailed explanation here (I'm esbo on that forum) http://www.scienceforums.net/topic/66114-wind-farms-cause-global-warming/page__st__60