Widespread Permafrost Degradation: Updates from Global Terrestrial Network for Permafrost

Filip Hrbacek, Masaryk University, Department of Geography, Faculty of Science, Brno, Czech Republic, Jeannette Nötzli, WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland, Anna M. Irrgang, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, Philippe Schoeneich, Université de Grenoble Alpes, Institut de Géographie Alpine, Grenoble, France, Sharon L Smith, Geological Survey of Canada, Natural Resources Canada, Ottawa, Canada, Goncalo Vieira, Centre of Geographical Studies, Instituto de Geografia e Ordenamento do Território, Universidade de Lisboa, Lisbon, Portugal and Dmitry A Streletskiy, The George Washington University, Department of Geography, Washington, United States