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Motorist stop at an intersection where a sign displays the temperature on June 20, 2017 in Phoenix, Arizona. Record temperatures of 118 to 120 degrees were expected on Tuesday for the Phoenix-metro area. | Ralph Freso/Getty Images
Climate

Temperatures in Phoenix Are So Hot, Planes Can't Take Off

A record heatwave throughout the West is grounding flights, which some scientists say is an example of the "hidden costs of climate change."