Air conditioning is a stupid invention. It ensures that you are less able to withstand the heat outside. You could catch a cold when you are sweaty and enter an airconditioned room. It spreads bacteria and particulate matter because the cooled air is not always filtered. It costs energy and generates CO2 emissions. It causes the melting of the polar ice caps and the extinction of many birds and animal species.
Insulate your house, keep the sun out and open your windows at night to let the cold air in. That is the way our forefathers did it and we can learn from them.
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