A refrigerant used in home air conditioners is going away. The most common air-conditioning coolant for decades was R-22, referred to as Freon. Production of it ends this year. It is being replaced by ...
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When the heat index in Delhi, India, reached 125 degrees Fahrenheit this summer, so many people cranked up their air-conditioning that it led to power cuts. It’s one fundamental problem with modern AC ...
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