CMIP7 emissions scenarios out for IPCC AR7

Published on September 2, 2026 4:46 PM GMTThe new CMIP7 emissions scenarios are out for the IPCC's seventh assessment report (AR7). See the CarbonBrief explainer for a full breakdown.Notable changes:The highest 8.5 scenario was dropped and the now "high" scenario has much less warmingMuch of this is because of climate policy and low cost tech; high coal use for electricity is no longer plausible given the low cost of renewables and batteriesNo baseline scenario; instead they show less/current/mo...