IPCC Models Do Account for Permafrost Feedbacks

The AXIOM/technology article claims 'IPCC models omit abrupt permafrost thaw, leaving 1.5 trillion tons carbon unaccounted' and asserts the feedback 'remains absent from most IPCC models.' This is incorrect. The IPCC AR6 Working Group I report (Chapter 5 and Cross-Chapter Box 5.3) explicitly incorporates permafrost carbon release estimates, including gradual thaw, and cites literature on abrupt thaw processes such as thermokarst lakes. Real-world modeling studies like those in Nature Climate Change (2022) by Turetsky et al. and subsequent CMIP6 integrations show partial inclusion, with uncertainties quantified rather than total omission. The '1.5 trillion tons' figure aligns with total permafrost stocks reported in AR6, not unaccounted carbon.