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Water in it's gaseous state and carbon dioxide were two gases that caused increased melting in Greenland.
penguin
Climate change is the dominant reason why.
Glaciers and ice caps are melting. The ice over Greenland is melting and so is the Arctic sea ice.
We are causing global warming which is melting the ice.
Melting Glaciers
Actually, ocean currents are what largely regulate the weather and the wind. Currently, the North Atlantic current is warm, therefore a small area of Greenland and the Arctic are warming and causing a little more melting of glaciers in that area.
The closest country to Greenland is Canada, or North America.
There are a couple reports out there of a supposed eruption in Greenland in 2006, however no scientific forum or otherwise has ever confirmed this. There are theories that volcanoes may be melting glacial ice under the Greenland Ice Cap, but this also has not been verified. No satellite data has ever captured an eruption in Greenland. The Nussaw Basin in Greenland displays some volcanic features from the Paleocene time period, and clastic material is present in some sedement layers, however these are ancient, and no new volcanism has ever been confirmed on the Greenland continent.
The melting of the glaciers and ice caps of Greenland, Antarctica and other places.
The Polar bear gets in real trouble if the ice cap disappeared.
Because Greenland's ice shelf is melting, while the Antarctic's is increasing in depth.