Sea ice

Sea ice is a type of ice that forms from the freezing of seawater in polar regions and in some subarctic regions. It plays a crucial role in the Earth's climate system and is an essential component of marine ecosystems. Here are some key points about sea ice: 1. **Formation**: Sea ice typically forms during the winter months when air temperatures drop and the surface of the ocean cools. As the water freezes, it creates a layer of ice on the ocean's surface.