2027 will set a new global temperature record of about +1.7°C above the 1880-1920 average.

Pending ●●●●●

“We project a global temperature record of +1.7°C in 2027”

Said on: 18 December 2025 · Hansen et al. Substack post "Global Temperature in 2025, 2026, 2027", 18 December 2025; tied to an expected El Niño starting in the second half of 2026
Source: Global Temperature in 2025, 2026, 2027 · James Hansen (Substack)
Should come true: 2027
How sure they sounded: We project
Categories: Climate
Importance: 3 of 5 · A new record near +1.7°C would strongly support the warming-acceleration thesis.

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