Physical and biological characteristics of the circumpolar Arctic, emphasizing terrestrial environments and the impacts on and by humans, including: glacial history; climatology; biogeography/ecology of arctic tundra; human-environment interactions, settlement and exploration; and current environmental, social and economic problems. Restricted to students with second-year standing or higher. Credit will only be granted for one of GEOG_V 397 or GEOG_V 497.