Permafrost vulnerability to climate change: understanding thaw dynamics and climate feedback of permafrost degradation

This article synthesizes findings from 35 interdisciplinary studies, which together collectively advance our understanding of permafrost degradation dynamics and their cascading impacts, with significant implications for Earth system feedback, ecosystems, and infrastructure. The collated studies span a wide range of both spatial scales and critical research scopes, with study scales ranging from site-level process studies to regional syntheses, and the research areas including (but not limited to) thaw processes, hydrology-ecosystem interactions, biogeochemical feedback, and emerging techniques in monitoring and modeling (e.g. AI and machine learning).

The synthesis of contributions overall highlights the critical importance of integrative, cross-disciplinary approaches for characterizing and understanding permafrost vulnerability. Moreover, there is a need for sustained investment in observational networks, methodological innovation, and coordinated synthesis efforts. This will not only improve predictive capabilities, but allow us to understand long-term consequences of permafrost thaw and the associated adaptive responses in a rapidly evolving cryosphere.