Glaciers are large bodies of ice that act like protective covers over Earth and its oceans. These unique forms also contain valuable information about the history of Earth's climate used to determine rates of climate warming. Glaciers cover about 10% of land on earth and store about 69% of the world's fresh water. They are found on six of the seven continents, with most glacial ice in Antartica and Greenland. Current rates of glacial melting due to warming temperatures are unprecedented, wich is of grave concern for sea level rise, ocean currents and climate-regulating processes.