UN scientific body
Appears in 3 stories
Primary international authority on climate science
For decades, scientists assumed forests and soils absorbed roughly 30% of humanity's carbon dioxide emissions. A major reassessment published in Nature in January 2026 shows they've been overestimating: the natural land carbon sink is 20% smaller than previously calculated. That's 0.6 billion tonnes of carbon per year staying in the atmosphere instead of being absorbed.
Updated 2 days ago
Also included in Trump's withdrawal from 66 organizations
On January 7, 2026, Trump signed a memorandum directing US withdrawal from the UN Framework Convention on Climate Change—the 1992 treaty George H.W. Bush signed and the Senate unanimously ratified. The US is the first of 198 parties to exit. The UNFCCC underpins all international climate negotiations (unlike the Paris Agreement, which Trump also exited), and withdrawal takes effect one year from notification.
Updated May 19
Will use CMIP7 outputs for AR7, due 2028–2029
The scenario long used as climate change's 'business as usual' no longer counts. In April 2026, the team building the next generation of global climate models removed SSP5-8.5 — the high-emissions track behind most '4-5°C by 2100' headlines — from the CMIP7 framework that will feed the IPCC's seventh assessment report.
Updated May 10
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