UNEP says 1.5°C warming limit is now unattainable as emissions stay high
The UN Environment Programme’s 2026 Emissions Gap Report warns the Paris Agreement’s 1.5°C guardrail has been breached.
KEY POINTS
- 1.5°C warming threshold is now unattainable
- Global GHG emissions were 58.4 Gt CO₂e in 2025
- Fossil sources account for more than two-thirds of emissions
- September 2026 was 1.63°C above pre-industrial levels
The United Nations Environment Programme says holding global warming below 1.5°C above pre-industrial levels with no or limited overshoot is no longer possible.
Crossing the 1.5°C guardrail set under the Paris Agreement would further intensify the climate emergency, the report warns.
“The chance of holding global warming to below 1.5°C above pre-industrial levels with no or limited overshoot is gone.”
Global greenhouse gas emissions reached 58.4 gigatons of CO₂ equivalent in 2025, a slight decline of 0.1 Gt CO₂e from 2024 levels.
More than two-thirds of all greenhouse gas emissions come from fossil sources, with the rest from land use, land-use change and forestry.
The report calls for accelerated mitigation efforts to minimize overshoot and return to safer levels by the end of the century.
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