Near-surface permafrost could be nearly gone by 2100, scientists conclude

Phys.org   September 19, 2023 Accurate understanding of permafrost dynamics is critical for evaluating and mitigating impacts that may arise as permafrost degrades in the future; however, existing projections have large uncertainties. To better understand how near‐surface permafrost may respond to future warming, an international team of researchers (US – University of Alaska, NCAR, University of Connecticut, Columbia University, — UK, Germany, Japan, Canada, France, the Netherlands, Sweden) combined a surface frost index model with outputs from the second phase of the Pliocene Model Intercomparison Project to simulate the near‐surface (~3 to 4 m depth) permafrost state in the Northern Hemisphere […]