People cool off at a fountain in Washington, D.C., the United States, on June 26, 2024. Washington, D.C. experienced a heatwave on Wednesday, with temperatures soaring to 36.7 degrees Celsius. (Photo by Liu Shuxian/Xinhua)A child cools off at a fountain in Washington, D.C., the United States, on June 26, 2024. Washington, D.C. experienced a heatwave…