Heat waves and climate change: Is there a connection? » Yale Climate Connections

Extreme heat may not trigger the same visceral fear as a tornado, but according to NOAA’s natural hazard statistics, it causes nearly twice as many fatalities in the United States each year – more than any other weather hazard. As the climate continues to warm, that number could rise dramatically in the U.S. and around the world.



Since the late 1800s, human-caused climate change has warmed the Earth’s average temperature by around 1 degree Celsius (1.8 degrees Fahrenheit). That doesn’t sound like much, but a relatively small warming of the average temperature results in a large jump in extreme heat.

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