Humans helping the global warming demons is causing the polar ice cap gods to become weaker, who in turn are unable to contain the cold yin winds in the poles, causing them to move to your house.
But remember when we found out CFC's were damaging the ozone layer? Somehow scientists convinced everybody to switch to more expensive, less effective refrigerants, and then it all got better. Gosh, we didn't know how good we had it back then.