Phoenix Fire Capt. John Prato demonstrates a new protocol that the fire department in America’s hottest big city is adopting as the West braces for the first heat wave of the summer season, Monday, June 3, 2024, in Phoenix. The cold water immersion therapy already used by hospitals in the area will also now be used by Phoenix fire and paramedics personnel on every patient they encounter this season with signs of heat stroke. (AP Photo/Anita Snow)