ARCTIC TUNDRA GREENING AND BROWNING AT CIRCUMPOLAR AND REGIONAL SCALES
Howard E Epstein, University of Virginia, Environmental Sciences, Charlottesville, VA, United States, Uma Suren Bhatt, University of Alaska Fairbanks, Fairbanks, AK, United States, Donald A Walker, University of Alaska Fairbanks, Alaska Geobotany Center, Fairbanks, AK, United States, Martha K Raynolds, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and Xi Yang, University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States
