2026-05-18 15:11 UTC
It's also ironic to hear the current admin cheer the retirement of high-emissions scenarios while actively rolling back climate policy, restricting clean energy, and propping up coal. The new CMIP7 High scenario explores exactly that world and lands at ~3.2C (with a range of 2.5C to 4.3C).
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@hausfath@fediscience.org 2026-05-18 15:11
And the world doesn't end in 2100, even if our scenarios used to. AR7 will extend projections through 2150. As long as CO2 emissions are above zero, warming continues. The high scenario eventually catches up to RCP8.5-level warming, just later. Even the medium scenario ends up at 3.7C: