Greenhouse gas levels set records in 2025, U.N. says, expressing alarm — Live Feedhttps://www.live-feeds.com/feed/greenhouse-gas-levels-set-records-in-2025-u-n-says-expressing-alarmContinuously updated, source-cited coverage. U.N. Says Greenhouse Gases Reached Record Highs in 2025https://www.live-feeds.com/feed/greenhouse-gas-levels-set-records-in-2025-u-n-says-expressing-alarmhttps://www.live-feeds.com/feed/greenhouse-gas-levels-set-records-in-2025-u-n-says-expressing-alarm#u164194Fri, 30 Oct 2026 14:35:27 +0000Atmospheric concentrations of major greenhouse gases climbed to unprecedented highs in 2025, according to announcements from the United Nations and the World Meteorological Organization. The World Meteorological Organization reports that carbon dioxide, methane, and nitrous oxide all surged due to the continued burning of fossil fuels. United Nations officials warn that these record levels will trap additional heat and lock the planet into long-term climate impacts that will persist for centuries, bringing more extreme weather as governments prepare for upcoming international climate talks.Why