David P Amouroux, IPREM / CNRS, Pau, France

Carl P J Mitchell¹, Vaughn Mangal¹, Wai Ying Lam¹ and Erik Emilson², (1)University of Toronto Scarborough, Physical and Environmental Sciences, Toronto, ON, Canada, (2)Natural Resources Canada, Great Lakes Forestry Centre, Sault Ste. Marie, Canada

Sharmin Siddiqui¹, Alexandra Feldman², Rafael Almeida³, Carolina Rodrigues da Costa Doria⁴, Maria Alice Lima⁵ and David A Kaplan¹, (1)University of Florida, Environmental Engineering Sciences, Ft Walton Beach, FL, United States, (2)University of Florida, Environmental Engineering Sciences, Gainesville, FL, United States, (3)Yachay Tech University, Department of Earth, Energy and Environmental Sciences, Imbabura, Ecuador, (4)Universidade Federal do Rondônia, Biology, Porto Velho, Brazil, (5)Federal University of Rio Grande do Norte, Natal, Brazil

Peter Scott Weiss-Penzias, University of California Santa Cruz, Department of Microbiology and Environmental Toxicology, Santa Cruz, CA, United States, Roberto Rivera, University of California, Santa Cruz, Chemistry and Biochemistry, Santa Cruz, CA, United States and Dave Rundio, NOAA, Southwest Fisheries Science Center, Santa Cruz, United States

Lauren Thompson¹, Maria Florencia Fahnestock², Gustaf Hugelius³, Sofi Jonsson⁴, David Olefeldt⁵, Kevin M Schaefer⁶, Paul F Schuster⁷, Sarah Shakil⁸, Kyra St. Pierre⁸ and Scott Zolkos⁹, (1)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (2)University of New Hampshire, Department of Earth Sciences, Durham, NH, United States, (3)Stockholm University, Department of Physical Geography, Stockholm, Sweden, (4)Stockholm University, Department of Environmental Science, Stockholm, Sweden, (5)University of Guelph, Guelph, ON, Canada, (6)National Snow and Ice Data Center, Cooperative Institute for Research in the Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado, U.S.A, Boulder, CO, United States, (7)USGS, Boulder, CO, United States, (8)University of Alberta, Edmonton, AB, Canada, (9)Woods Hole Research Center, Falmouth, MA, United States

Karin Josefina Eklöf¹, Heleen De Wit², Chris Eckley³, Collin Eagles-Smith⁴, Rob Mackereth⁵, Ulf Skyllberg⁶, Liisa Ukonmaanaho⁷, Matti Verta⁸, Craig J Allan⁹, Karen Kidd¹⁰, Carl P J Mitchell¹¹, John Munthe¹², Joel Segersten¹, Susan L Eggert¹³, Tapani Sallantaus⁸, Randall K Kolka¹³, Erik Emilson¹⁴, Stephen Sebestyen¹³, Ulf Sikström¹⁵, Therese Zetterberg¹⁶ and Andrea Garcia Bravo¹⁷, (1)SLU Swedish University of Agricultural Sciences Uppsala, Uppsala, Sweden, (2)Norwegian Institute for Water Research, Catchment processes, Oslo, Norway, (3)Environmental Protection Agency Seattle, Seattle, WA, United States, (4)USGS Forest and Rangeland Ecosystem Science Center, Corvallis, United States, (5)Ontario Minitry of the Environment, Center for Northern Forest Ecosystem Research, Thunder Bay, Canada, (6)Swedish University of Agricultural Sciences, Umeå, Sweden, (7)Natural Resources Institute Finland, Helsinki, Finland, (8)Finnish Environment Institute, Helsinki, Finland, (9)University of North Carolina at Charlotte, Geography and Earth Sciences, Charlotte, NC, United States, (10)McMaster University, Hamilton, Canada, (11)University of Toronto, Physical and Environmental Sciences, Toronto, ON, Canada, (12)IVL Swedish Environmental Research Institute, Stockholm, Sweden, (13)USDA Forest Service, Grand Rapids, United States, (14)Natural Resources Canada, Great Lakes Forestry Centre, Sault Ste. Marie, Canada, (15)The Forestry Research Institute of Sweden - Skogforsk, Uppsala, Sweden, (16)SLU Swedish University of Agricultural Sciences, Uppsala, Sweden, (17)Spanish National Research Council, Barcelona, Spain

Nathan Chellman¹, Adam Z Csank², Mae Sexauer Gustin³, Monica M Arienzo¹, Margarita Vargas Estrada⁴ and Joseph R McConnell¹, (1)Desert Research Institute Reno, Reno, NV, United States, (2)University of Nevada Reno, Reno, NV, United States, (3)University of Nevada-Reno, Reno, NV, United States, (4)University of Nevada Reno, Reno, United States

Sonia A Nagorski, University of Alaska Southeast, Natural Sciences, Juneau, AK, United States, Vermilyea Andrew, Castleton University, Castleton, VT, United States and Carl H Lamborg, Woods Hole Oceanographic Institution, Woods Hole, MA, United States