Students will learn about the circumpolar North, starting with an overview of regional geography, and then focusing on the cryosphere (ice), atmosphere and ocean of the region. Students will learn why the Arctic is cold and ice covered, and how that impacts its climate and ecosystems. Topics will also include present-day climate change, the processes driving it, and evidence for it in the Arctic, as well as its implications in the rapidly evolving North. This course will be delivered entirely on-line. Prerequisites: Biology 30 or equivalent, or any 100-level course in the Faculty of Science.