Global warming 'feedback loop'
Air conditioning is very greenhouse gas-intensive, which contributes to the warming of the planet, which causes more people use air conditioning. This from the Guardian: "There are just over 1 billion single-room air conditioning units in the world right now — about one for every seven people on earth. Numerous reports have projected that by 2050 there are likely to be more than 4.5b, making them as ubiquitous as the mobile phone is today. The US already uses as much electricity for air conditioning each year as the UK uses in total. The IEA projects that