The Seventy-Eighth Parallel is a line of latitude located at 78 degrees north of the equator. It runs across the Arctic Ocean and is primarily situated in polar regions, including parts of Greenland and the Arctic Ocean. This parallel is significant for navigation and climate studies, as it marks a boundary in the Earth's polar environment. In terms of geography, the Seventy-Eighth Parallel is mostly covered by ice and is sparsely populated. It is important for understanding the effects of climate change, as the Arctic regions are experiencing rapid warming. Research in this area often focuses on the impact on wildlife and ecosystems.