Earth atmosphere from space at sunrise
WMO Bulletin No. 22 & COP31

Atmospheric CO2 Hits Record 426.8 ppm Ahead of COP31

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.

+2.8 ppm Annual Jump

CO2 Rose 2.8 ppm in One Year as El Niño Weakened Sinks

Atmospheric CO2 climbed 2.8 ppm year-over-year—above the decade average—as ocean warming and forest drought stressed natural carbon sinks.

Methane & Nitrous Oxide Records

Methane Hits 1,948 ppb (167%) & N2O Reaches 339.1 ppb

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%).

AGU Earth's Future Study

Intense Rainstorms Are Compressing Into Shorter Bursts

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.

COP31 Antalya (Nov 9–20)

190+ Nations Gather in Antalya, Türkiye for COP31

Running November 9–20, 2026 under Türkiye’s Presidency (Murat Kurum) with Australia co-leading negotiations, COP31 focuses on turning pledges into financed action.

Priority #1: Adaptation Gap

Closing the Multi-Billion-Dollar Adaptation Finance Gap

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.

Priority #2: Article 6 Carbon

Article 6 Carbon Markets & High-Integrity Removals

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.

Priority #3: Methane Rules

EPA Methane Rollback Proposal vs. EU Reg 2024/1787

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.

US Delegation at COP31

Post-Midterm Congress & 24 US Climate Alliance Governors

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.

Corporate Action & Tools

Model Your Scope 1–3, SBTi & Carbon Portfolio Exposure

Tap below to read our full 2026 Global Climate & COP31 Briefing and run our 100% client-side GHG, SBTi 1.5°C, and Carbon Credit Portfolio calculators.