1 Noah makes fun of Oliverâs dead mother, so Oliver smacks him one. 2  Oliver runs away to London. 3  On his way, he gets picked up by the Artful Dodger, who promises to take Oliver to a gentleman who will give him a place to stay.
Ice sheets are important because they are at sea level, where climate change shows up. Melting ice sheets can be an early warning sign of global warming. We need to know what's happening to the ice because it is a major component of the Earth's climate system; it affects the climate and is effected by it.
The Arctic isn't quite as cold as Antarctica, and here are some reasons why: A massive ice sheet covers almost all of the Antarctic continent. Although glaciers are common in the Arctic, Greenland has the only permanent ice sheet, but it's only about 1/8 the size of the Antarctic ice sheet.he ice cap over the Arctic Ocean is always moving because of the winds above it and the ocean currents beneath it. This movement causes large cracks (called leads) to open up-even in winter-and this allows ocean heat to escape into the air. Land loses heat faster than water.