It'd be interesting to see a study of the _net_ effects of them this. They are not only a positive. For example: > Moreover, air-conditioning in the U.S. may h

It'd be interesting to see a study of the _net_ effects of them this. They are not only a positive. For example: > Moreover, air-conditioning in the U.S. may have more indirect but nevertheless dangerous impacts: Whereas Europeans have decided to simply accept the existence of hot days and nights, American architects have been forced to ban balconies and porches from many work spaces and to lower ceilings within buildings to keep as much cold air indoors as possible, according to the Economist. In other words, whereas Americans might be more productive at work thanks to air-conditioning, they are also more likely to be stressed. https://www.washingtonpost.com/news/worldviews/wp/2015/07/22/europe-to-america-your-love-of-air-conditioning-is-stupid/ https://www.washingtonpost.com/news/worldviews/wp/2015/07/22... They also use a lot of power: > Using air conditioners and electric fans to stay cool already accounts for about a fifth of the total electricity used in buildings around the world – or 10% of all global electricity consumption today. https://www.iea.org/newsroom/news/2018/may/air-conditioning-use-emerges-as-one-of-the-key-drivers-of-global-electricity-dema.html https://www.iea.org/newsroom/news/2018/may/air-conditioning-... > The power consumption of air conditioners averages 318 watts (for a 24,000 BTU unit) in most American households. That 318-watt average (source: U.S. DOE) adds up to 228 kWh per month. https://www.kompulsa.com/much-power-air-conditioners-consume/ https://www.kompulsa.com/much-power-air-conditioners-consume... At those figures, it would add about a third to my (UK) house's electricity bill. Edit: Cold weather also kills about 3000 people in the UK every years as they can't afford to heat their homes (https://www.independent.co.uk/news/business/news/cold-weather-uk-winter-deaths-europe-polar-vortex-a8224276.html https://www.independent.co.uk/news/business/news/cold-weathe...), so air con wouldn't necessarily remove the problem in its entirety. You'd have the same problem from the other side - people can't afford to cool their homes.