Jennifer Watts¹, Susan Natali², Christina Minions³, Sarah Ludwig⁴, Brendan M Rogers⁵, David A Risk⁶, Scott J Goetz⁷, Oliver Sonnentag⁸, Adrian V Rocha⁹, Eugenie Susanne Euskirchen¹⁰, Kyle Andreas Arndt¹¹, Donatella Zona¹², Elyn Humphreys¹³, Gerardo Celis¹⁴, Hiroki Ikawa¹⁵, Edward Schuur^16,17, Meghan Taylor¹⁷, Masahito Ueyama¹⁸, Hideki Kobayashi¹⁹, Rikie Suzuki²⁰, Peter Lafleur²¹, Margaret S Torn²², Sigrid Dengel²³, Bang-Yong Lee²⁴, Yongwon Kim²⁵, Manuel Helbig²⁶, Gabriel Hould Gosselin²⁷, John S Kimball²⁸, Justin Ledman¹⁰, Roisin Commane²⁹, Luke D Schiferl³⁰, Walter C Oechel³¹, Frans-Jan W Parmentier^32,33, Julie D Jastrow³⁴, Marguerite Mauritz¹⁷, Nima Madani³⁵, Charles E Miller³⁶, Leah Birch⁴ and Stan Wullschleger³⁷, (1)Woods Hole Research Center, Falmouth, United States, (2)Woods Hole Science Center, Falmouth, MA, United States, (3)St. Francis Xavier University, Earth Science, Antigonish, NS, Canada, (4)Woods Hole Research Center, Falmouth, MA, United States, (5)University of California Irvine, Irvine, CA, United States, (6)St. Francis Xavier University, Department of Earth Sciences, Antigonish, NS, Canada, (7)Northern Arizona University, SICCS, Flagstaff, AZ, United States, (8)Université de Montréal, Département de Géographie, Montréal, QC, Canada, (9)Univ of Notre Dame, Notre Dame, IN, United States, (10)University of Alaska Fairbanks, Fairbanks, AK, United States, (11)Washington, DC, United States, (12)San Diego State University, San Diego, CA, United States, (13)Carleton University, Ottawa, ON, Canada, (14)University of Florida, Gainesville, FL, United States, (15)International Arctic Research Center, Fairbanks, AK, United States, (16)Univ Florida, Gainesville, FL, United States, (17)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, (18)Osaka Prefecture University, Sakai, Japan, (19)Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (20)Japan Agency for Marine-Earth Science and Technology, Department of Environmental Geochemical Cycle Research, Yokohama, Japan, (21)Trent University, Peterborough, ON, Canada, (22)Berkeley Lab/UC Berkeley, Berkeley, CA, United States, (23)University of Helsinki, Helsinki, Finland, (24)Korea Polar Research Institute, Division of Polar Climate Sciences, Incheon, South Korea, (25)Univ Alaska Fairbanks, Fairbanks, AK, United States, (26)McMaster University, School Of Geography & Earth Sciences, Hamilton, ON, Canada, (27)University of Montreal, Department of Geography, Montreal, Canada, (28)The University of Montana, Numerical Terradynamic Simulation Group, W.A. Franke College of Forestry & Conservation, Missoula, MT, United States, (29)Columbia University of New York City, Palisades, CA, United States, (30)Harvard University, Cambridge, MA, United States, (31)San Diego State University, Global Change Research Group, San Diego, CA, United States, (32)The Arctic University of Norway, Department of Arctic and Marine Biology, Tromsø, Norway, (33)University of Oslo, Department of Geosciences, Oslo, Norway, (34)Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, (35)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (36)Jet Propulsion Lab, Pasadena, CA, United States, (37)Oak Ridge National Laboratory, Climate Change Science Institute, Environmental Science Division, Oak Ridge, TN, United States