Study finds climate tipping points studied unevenly, with blind spots over fast-warming systems

A PNAS study highlighted on 10 October 2026 shows that climate science is unevenly focused across the systems most likely to tip the planet into a new state. Researchers scanned 20,736 scientific publications on 14 climate tipping elements from 2000 to 2025 and found that only about 8.1 per cent of the papers explicitly examined tipping dynamics such as abruptness or irreversibility. Attention was concentrated on the Greenland Ice Sheet and the Atlantic Meridional Overturning Circulation, while abrupt Boreal Permafrost thaw and the North Atlantic Subpolar Gyre received far fewer studies despite having similarly low estimated warming thresholds - roughly 1.5°C above pre-industrial for permafrost and Greenland, and about 1.8°C for the subpolar gyre. The authors warn that risk assessments feeding into the IPCC's forthcoming AR7 report and the COP31 climate talks in Antalya in November could systematically under-represent some of the most dangerous and least understood feedbacks in the Earth system. The paper landed days before an IPCC plenary in Addis Ababa due to decide the AR7 timeline, giving it unusual policy traction.