World Meteorological Organization (WMO) Secretary-General Celeste Saulo looks on during a press conference on the WMO's 2023 global climate report in Geneva, on March 19, 2024. Global heat records were "smashed" last year, the UN confirmed, with 2023 rounding out the hottest decade on record, as heatwaves stalked oceans and glaciers suffered record ice loss. (Photo by Fabrice COFFRINI / AFP)