A computer monitor displays the temperatures inside the display cases as they monitor the heat during the heatwave, at the Grant Museum of Zoology, in London on June 26, 2026. As visitors peered at the skeletons and preserved animals at a London zoological museum during the latest heatwave, staff were focused on a different attraction: a computer screen glowing with red and green temperature indicators. With each one linked to a sensor in a different display case, the system allows staff to see when an exhibit is in danger of overheating. (Photo by CARLOS JASSO / AFP via Getty Images) / TO GO WITH AFP STORY BY HELEN ROWE