The World Meteorological Organization’s Greenhouse Gas Bulletin No. 22 confirms surface CO2 reached 426.8 ppm—153% of pre-industrial levels—just before COP31.
Atmospheric CO2 climbed 2.8 ppm year-over-year—above the decade average—as ocean warming and forest drought stressed natural carbon sinks.
WMO Bulletin No. 22 reports record highs across all three major greenhouse gases: CH4 at 1,948 ppb (167% of 1750 levels) and N2O at 339.1 ppb (126%).
A November 2026 study in Earth’s Future shows multi-day extreme rainstorms—which deliver ~50% of annual rainfall—have compressed since 1980, raising flash-flood risk.
Running November 9–20, 2026 under Türkiye’s Presidency (Murat Kurum) with Australia co-leading negotiations, COP31 focuses on turning pledges into financed action.
With Super El Niño and compressed extreme rainfall driving flood and drought losses, UNEP FI and COP31 negotiators are prioritizing adaptation and loss-and-damage finance.
Corporates using voluntary and Article 6 carbon credits face strict ICVCM Core Carbon Principles (CCP) and SBTi BVCM scrutiny for 2026–2030 net-zero claims.
While the US EPA proposed revising oil and gas super-emitter methane rules, US LNG exporters to Europe still face binding EU Methane Regulation (EU 2024/1787) MRV.
Following the Nov 3, 2026 US midterms, congressional oversight and the 24-governor US Climate Alliance (~55% of US pop, ~60% of GDP) anchor US subnational pledges.
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