Climate change intensifies US, Mexico heat wave, study finds

FILE - Pedestrians walk under cooling misters on a hot day in Las Vegas, Nevada, July 13, 2023. A recent study shows that intense and perpetual heat in the United States, Mexico and Central America is the result of human-caused climate change.  

A recent study shows that intense and perpetual heat in the United States, Mexico and Central America is the result of human-caused climate change.