The US uses more power for its air conditioning than the whole of Africa uses for all of its electrical needs. On top of that, air con pumps hot air out into the environment, making large cities up to two degrees C hotter. And if the HFC used by air con accidentally leaks out, which it frequently does, it's far more potent than any of the other usual greenhouse gas suspects. So contemplate that next time you think your local Sainsbury's is a bit chilly, Bonzo. Your shivers are going to kill the planet, including you and yours.