Weakening greening trend in the late growing season across mid-to-high latitudes in the Northern Hemisphere and its drivers

Wen Zhang1, David Joseph Moore2, William K Smith2 and Matthew P Dannenberg3, (1)University of Arizona, School of Natural Resources and the Environment,, Tucson, United States, (2)University of Arizona, School of Natural Resources and the Environment, Tucson, United States, (3)University of Iowa, Department of Geographical and Sustainability Sciences, Iowa City, United States