Glacial calving is the process where chunks of ice break off from the edge of a glacier or an ice shelf. This occurs when the ice becomes too heavy or when the water beneath it melts, causing the ice to crack and fall into the ocean or a lake. The resulting icebergs can vary in size, from small pieces to massive structures. This phenomenon is a natural part of a glacier's lifecycle and is influenced by factors such as temperature, ocean currents, and the glacier's movement. As global temperatures rise, increased glacial calving can contribute to rising sea levels, impacting coastal communities and ecosystems.