I'll make other sacrifices other than AC. Holy smokes, it was a 100 plus in Houston & Dallas this weekend. I'd have to move "north" for the summer. LOL!Actually I would be interested to learn about the science behind Kerry's statement. Since CFCs were phased out because of their impact on the ozone layer we now use HCFCs as refrigerants. They apparently dont do the same harm to ozone but how much do they contribute to greenhouse gases?