The ocean located north of the Arctic Circle is the Arctic Ocean. It is the smallest and shallowest of the world's five major oceans, bordered by several countries including Canada, Russia, and Greenland. The Arctic Ocean is characterized by its cold temperatures and is largely covered by sea ice, particularly in winter months. This ocean is home to unique marine ecosystems, including various species of fish, seals, and polar bears. Its ice cover and changing conditions are also pivotal in discussions about climate change, as they impact global weather patterns and sea levels.