ScenarioMIP for CMIP7

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Climate scientists drop worst-case warming scenario from new model framework

As of May 2026: Published new scenario framework April 2026

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 CMIP7, which will feed the IPCC's seventh assessment report.

Updated May 31