UNEP’s new Emissions Gap Report examines how to limit a temporary overshoot of 1.5°C in long-term global warming, then bring temperatures back down.
Current policies correspond to about 2.8°C this century; delivering national climate pledges and continuing similar efforts corresponds to about 2.6°C. These are conditional scenarios, each with a 66% chance of limiting warming to the stated level, not guaranteed forecasts.
The lowest-overshoot pathway assumes stringent mitigation from 2025, emissions 18% below 2025 levels by 2030, deeper subsequent cuts and expanding carbon dioxide removal. The 18% cut alone is not sufficient. Returning to 1.5°C or below by 2100 has about a 50% chance in that full pathway. Warming refers to the multidecadal global average above pre-industrial levels, not a single year or local weather.
Reporting cutoff: 21 October 2026, 08:36 UTC. Primary public release: 21 October; exact release time not supplied. AP independent report published 05:07 UTC. Repository creation dates precede public release.
SOURCES
UNEP report:
UNEP key messages (PDF):
UNEP release:
Independent reporting, AP / Seth Borenstein:
SOURCE CONTEXT — checked 21 October 2026
UNEP is the UN environment body and author of this assessment, with an institutional environmental-policy mandate. No comparable political-leaning rating is assigned.
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VISUAL CREDITS
All eight illustrations, data graphics and cover: original World in Context artwork created 21 October 2026. No event photographs or reproduced report figures. Graphic subjects: warming threshold; overshoot aims; 2.8/2.6°C scenarios; conditional outcomes; emissions-reduction index; CO2 removal; conditional return probability; implementation. The temperature bars share a zero-start 0–3°C scale. The emissions graphic uses a 2025 index of 100, falling to 82; the probability ring represents the conditional 50% estimate. Values are from UNEP’s key messages. Decorative diagrams are not data forecasts.
Narration uses an original fictional synthetic voice. Script and illustrations are AI-assisted and editorially checked. No real speaker is impersonated.
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