“Greenhouse Gases Hit Record Highs in 2025, WMO Report Warns of Locked-In Warming” — what this page in the network covers. Atmospheric concentrations of carbon dioxide and other major greenhouse gases surged to unprecedented levels in 2025, according to a new report from the World Meteorological Organization (WMO). The record highs signal that more long-term planetary warming is now unavoidable, even if emissions were t The record highs signal that more long-term planetary warming is now unavoidable, even if emissions were to drop sharply overnight.
The WMO's findings underscore the persistent upward trend in heat-trapping gases, driven largely by fossil fuel combustion and industrial activity. Carbon dioxide, the primary contributor to global warming, remains at the forefront of the increase, with methane and nitrous oxide also reaching new peaks. Scientists warn that each additional year of rising concentrations compounds the climate challenge, making extreme weather, sea-level rise, and ecosystem disruption more severe. For the complete material, the listing points back to the source inside the network.