Extreme heat closing schools, widening learning gaps worldwide

Grade 12 students use hand fans as they attend a class at the Commonwealth High School in Quezon City, Metro Manila, Philippines, April 18, 2024. FILE - An empty classroom of a school named Udayan Uchcha Madhyamik Bidyalaya, is pictured as all schools are closed due to on going heatwave in Dhaka, Bangladesh, April 25, 2024. Grade 12 students use a portable electric fan and hand fans inside a classroom at the Commonwealth High School, in Quezon City, Metro Manila, Philippines, April 18, 2024.

Hena Khan, a ninth-grade student in Dhaka, Bangladesh, has struggled to focus on her studies this week as temperatures surpassed 40 degrees Celsius (104 degrees Fahrenheit) in the capital city.