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Story summary
- UN Environment Programme released a report warning the world will soon exceed the 1.5 °C warming limit.
- Optimistic pathways peak at 1.8 °C mid-century, but current policies forecast 2.6 °C by 2100.
- The report urges net-negative CO2 emissions by 2100, deep methane cuts, and safeguards for vulnerable groups.
- Overshoot may raise deaths, hunger, water scarcity, economic loss and coral extinction, requiring CO2 removal beyond tree planting.
