Meredith Kime, Columbia University of New York, Earth and Environmental Sciences, New York, United States, Ajit Subramaniam, Columbia University, New York, United States, Alex Whiting, Native Village of Kotzebue, Kotzebue, United States, Andrew R Juhl, Lamont-Doherty Earth Observatory, Columbia University, Division of Biology and Paleo Environment, Palisades, NY, United States and Bill Carter, U.S Fish and Wildlife Service, Selawik National Wildlife Refuge, Kotzebue, United States