
2025 joins the hottest-year club as human emissions push global warming
2025 is among the hottest years on record, averaging about 1.44C above preindustrial levels, driven by long-term fossil-fuel emissions; a waning El Niño exposed underlying warming, and Copernicus warns the Paris 1.5C limit could be breached before the decade ends, as polar heat intensifies and sea ice declines.






