UN warns of record greenhouse gas levels in 2025
UN warns of record greenhouse gas levels in 2025
CH · Published Oct 27, 2026
• The United Nations has reported record-high concentrations of greenhouse gases in 2025, including carbon dioxide at 426.8 ppm, methane at 1948 ppb, and nitrous oxide at 339.1 ppb.
• These levels represent significant increases from pre-industrial times, with CO2 accounting for 66% of the warming effect.

Impact & Risks

The record greenhouse gas levels are locking in climate impacts that will persist for centuries, including rising global temperatures and more extreme weather events. Vulnerable regions, such as India, may face increased risks of heatwaves, flooding, and agricultural disruptions. The warming trend is expected to continue, with significant implications for economies and societies worldwide.

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