AC is the single biggest energy user in your home per KWH. Just a small room AC unit uses 1000 watts while a central air system uses between 2000 and 5000 watts.This huge energy consumption is for nothing but comfort and would be very easy to cut out of your life if you really think we are warming the planet with our energy use. When I was a kid AC was very rare and nearly all homes and businesses used fans and opened windows. On really hot days in school we would hold class outside under a shade tree. Anyway I have to wonder how many people in here crying about melting ice and rising sea levels use AC.
EDIT: gredy means greedy and mmade means made My key board is fookin up. ASUS sucks!