<P> An ice sheet is a mass of glacier ice that covers surrounding terrain and is greater than 50,000 km ( 19,000 sq mi ) , this is also known as continental glacier . The only current ice sheets are in Antarctica and Greenland ; during the last glacial period at Last Glacial Maximum ( LGM ) the Laurentide ice sheet covered much of North America , the Weichselian ice sheet covered northern Europe and the Patagonian Ice Sheet covered southern South America . </P>
<P> An ice sheet is a mass of glacier ice that covers surrounding terrain and is greater than 50,000 km ( 19,000 sq mi ) , this is also known as continental glacier . The only current ice sheets are in Antarctica and Greenland ; during the last glacial period at Last Glacial Maximum ( LGM ) the Laurentide ice sheet covered much of North America , the Weichselian ice sheet covered northern Europe and the Patagonian Ice Sheet covered southern South America . </P>
where do earth 's large ice sheets now exist
where do earth 's large ice sheets now exist
Antarctica Greenland
Antarctica Greenland