
Climate change is driving more dangerous summer heat across the U.S. Las Vegas, which reached 120 degrees last summer, is planting thousands of trees to help cool its hottest neighborhoods.
(Image credit: Ryan Kellman)

Climate change is driving more dangerous summer heat across the U.S. Las Vegas, which reached 120 degrees last summer, is planting thousands of trees to help cool its hottest neighborhoods.
(Image credit: Ryan Kellman)