The World's Getting So Hot, Scientists Needed a New Color :

On Earth Day, the National Weather Service and the Centers for Disease Control and Prevention teamed up to announce a new heat risk system to better communicate the severity of hot weather. The color-coded system added magenta, a fifth-tier of heat severity, beyond red, to communicate extreme heat “rare and/or long-duration extreme heat with little to no overnight relief,” according to the Associated Press.

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