It's not air conditioning that is warming the Earth, it's capitalism! If we accepted that we don't need to have such big profits, we could accept to stop working when it's too hot (or too cold, or too dark, etc). If we didn't have to pay such interests on the debt so fast, we could accept to receive our Amazon packets in 2 months instead of 2 hours, we could send them by sail instead of oil-powered cargos.