A glacier is a large mass of ice that acts like a thick river, slowly flowing downhill under the influence of gravity. It is formed in pieces where more snow falls in winter than can melt in summer. Over time, the accumulated snow compresses, turns and begins to flow outwards and downwards under the pressure of it's own weight.
Presently, ten percent of land area is covered with glaciers. Glaciers are found at high altitude on every continent. However, ninety-nine percent of our planet's glacial ice is contained within vast ice sheets in the polar regions. The world's largest glacier is the LAMBERT GLACIER IN ANTARCTICA. It is about 100 km wide, over 400 km long and about 2.5 km deep.
Presently, ten percent of land area is covered with glaciers. Glaciers are found at high altitude on every continent. However, ninety-nine percent of our planet's glacial ice is contained within vast ice sheets in the polar regions. The world's largest glacier is the LAMBERT GLACIER IN ANTARCTICA. It is about 100 km wide, over 400 km long and about 2.5 km deep.