FILE - In this Tuesday, July 28, 2020 file photo, Rey Gomez cools off in the spray from a fire hydrant in New York, as the city opened more than 300 fire hydrants with sprinkler caps to help residents cool off during a heat wave. According to a study published Tuesday, May 25, 2021 in Nature Communications, during the summer of 2017 in nearly all large urban areas, people of color are exposed to more extreme urban heat than white people. (AP Photo/Mark Lennihan, File)