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IPCC 2100 Warming Projection
Asked: What does the IPCC say is the likely global temperature increase by 2100?
What the latest scenarios say
Good to know
~3.5 °C above pre-industrial [1]
Worst-case 2100 warming
~1.1 °C
Warming already reached
No longer possible
1.5 °C target
The IPCC's Sixth Assessment Report (2021) projects warming of 1.0–1.8 °C by 2100 in its lowest-emissions scenario, and more than 2 °C unless deep emission cuts begin immediately. [9] Its newest scenarios cap the worst case at about 3.5 °C, down from the 4–6 °C of earlier gloomiest forecasts [1].
Which report?
3.5
Worst-case warming by 2100
IPCC's gloomiest new scenario, above pre-industrial levels [1]