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Story summary
- U.S. President Donald Trump withdrew the United States from the Paris climate accord, worsening the outlook.
- UNEP’s Emissions Gap Report says overshooting 1.5 °C is now imminent and unavoidable.
- The report projects average warming of 2.8 °C by 2100 if policies stay unchanged.
- Even with all pledges, temperatures would still reach about 2.6 °C, above the 1.5 °C goal.
- U.S. emissions rose in 2025, driven by renewed coal use and AI data-center demand.
