Although the worst effects of catastrophic climate change lie in the distant future, there are recent warnings that tell us that a climate disaster may be nearer than we thought. The Arctic and Antarctic regions are warming more than twice as fast as the remainder of the world. In the Antarctic region, the vast Thwaites glacier, sometimes called "the Doomsday Glacier", has recently exhibited so many cracks that scientists fear that it may shatter into small pieces like a windscreen. If this happens, the event may trigger the collapse of other nearby glaciers through a mechanism called "Marine Ice Cliff Instability". This could mean several meters of sea level rise, threatening all coastal cities throughout the world.
Other warnings come from the Arctic.
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