A woman with her face covered walks past air coolers kept on display outside a shop during a hot summer day amid severe heatwave in Varanasi on May 30, 2024. Extreme temperatures across India are having their worst impact in the country's teeming megacities, experts said on May 30, warning that the heat is fast becoming a public health crisis. India is enduring a crushing heatwave with temperatures in several cities sizzling well above 45 degrees Celsius (104 degrees Fahrenheit). (Photo by Niharika KULKARNI / AFP)