Synergistic interactions among growing stressors increase risk to an Arctic ecosystem by Arrigo, KR, van Dijken, GL, Cameron, MA, van der Grient, J, Wedding, LM, Hazen, L, Leape, J, Leonard, G, Merkl, A, Micheli, F, Mills, MM, Monismith, S, Ouellette, NT, Zivian, A, Levi, M, Bailey, RM