As we all know that global warming is increasing day by day we want to include some real facts according to the theory:
The Antarctic ice sheet is the largest single mass of ice on Earth.
It covers an area of almost 14 million square km and contains 30 million cubic km of ice.
Around 90 percent of the fresh water on the Earth's surface is held in the ice sheet, an amount equivalent to 70 m of water in the world's oceans.
In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2500m below sea level.
The land would be seabed if the ice sheet were not there. Ice enters the sheet through snow and frost and leaves by calving of icebergs and melting, usually at the base but also sometimes at the surface at warm sites..
For more information about the topic Antarctic ice sheet, read the full article at Wikipedia.org
The Greenland Ice Sheet is a vast body of ice covering roughly 80% of the surface of Greenland.
It is the second largest ice body in the world, after the Antarctic Ice Sheet.
The ice sheet is almost 2,400 kilometres long in a north-south direction, and its greatest width is 1,100 kilometres at latitude of 77° N, near its northern margin.
The ice sheet, consisting of layers of compressed snow from more than a hundred thousand years, contains in its ice today's most valuable record of past climates.
In the past decades, scientists have drilled ice cores up to three kilometres deep.
With the ice cores, scientist have obtained information on (proxies for) temperature, ocean volume, precipitation, chemistry and gas composition of the lower atmosphere, volcanic eruptions, solar variability, sea-surface productivity, desert extent and forest fires.
This variety of climatic proxies is greater than in any other natural recorder of climate, such as tree rings or sediment layers.
The Greenland Ice Sheet has experienced record melting in recent years and is likely to contribute substantially to sea level rise as well as to possible changes in ocean circulation in the future..
For more information about the topic Greenland ice sheet, read the full article at Wikipedia.org,
The Larsen Ice Shelf is a long, fringing ice shelf in the northwest part of the Weddell Sea, extending along the east coast of Antarctic Peninsula from Cape Longing to the area just southward of Hearst Island.
The Larsen Ice Shelf is a series of three shelves that occupy (or occupied) distinct embayments along the coast.
From north to south, the three segments are called Larsen A (the smallest), Larsen B, and Larsen C (the largest) by researchers who work in the area.
The Larsen A ice shelf disintegrated in January of 1995.
The Larsen B ice shelf disintegrated in February of 2002.
The Larsen C ice shelf appears to be stable. The Larsen disintegration events were unusual.
Typically, ice shelves lose mass by iceberg calving and by melting at their upper and lower surfaces.
The disintegration events are linked to the ongoing climate warming in the Antarctic Peninsula, about 0.5 °C per decade since the late 1940's (possibly a result of global warming)..
For more information about the topic Larsen Ice Shelf, read the full article at Wikipedia.org
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