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Zircon crystals reveal onset of plate tectonics

(Phys.org) -- We're familiar with the theory that the Earth's crust is composed of tectonic plates that move, sometimes dramatically to create earthquakes and tsunamis - but until recently, nobody knew how ...

Space & Earth / Earth Sciences

created 18 hours ago | popularity not rated yet | comments 0 | with audio podcast

Greenland's current loss of ice mass

The Greenland ice sheet continues to lose mass and thus contributes at about 0.7 millimeters per year to the currently observed sea level change of about 3 mm per year. This trend increases each year by a further 0.07 millimeters ...

Space & Earth / Earth Sciences

created May 29, 2012 | popularity 5 / 5 (5) | comments 0

Discovery of historical photos sheds light on Greenland ice loss

A chance discovery of 80-year-old photo plates in a Danish basement is providing new insight into how Greenland glaciers are melting today.

Space & Earth / Earth Sciences

created May 29, 2012 | popularity 4.6 / 5 (14) | comments 9 | with audio podcast

Increasing speed of Greenland glaciers gives new insight for rising sea level

Changes in the speed that ice travels in more than 200 outlet glaciers indicates that Greenland's contribution to rising sea level in the 21st century might be significantly less than the upper limits some ...

Space & Earth / Earth Sciences

created May 03, 2012 | popularity 3.2 / 5 (13) | comments 46 | with audio podcast

Greenland may be slip-sliding away due to surface lake melt: study

Like snow sliding off a roof on a sunny day, the Greenland Ice Sheet may be sliding faster into the ocean due to massive releases of meltwater from surface lakes, according to a new study by the University ...

Space & Earth / Earth Sciences

created Apr 16, 2012 | popularity 4.5 / 5 (15) | comments 45 | with audio podcast

'Gravity is climate' - 10 years of climate research satellites GRACE

For the first time, the melting of glaciers in Greenland could now be measured with high accuracy from space. Just in time for the tenth anniversary of the twin satellites GRACE (Gravity Recovery and Climate ...

Space & Earth / Earth Sciences

created Mar 16, 2012 | popularity 4.9 / 5 (8) | comments 5

NASA's IceBridge 2012 Arctic campaign takes to the skies

Researchers and flight crew with NASA's Operation IceBridge, an airborne mission to study changes in polar ice, began another season of science activity with the start of the 2012 Arctic campaign on March 13. From mid-March ...

Space & Earth / Earth Sciences

created Mar 15, 2012 | popularity 5 / 5 (1) | comments 0

Study: Greenland ice sheet may melt completely with 1.6 degrees global warming

The Greenland ice sheet is likely to be more vulnerable to global warming than previously thought. The temperature threshold for melting the ice sheet completely is in the range of 0.8 to 3.2 degrees Celsius ...

Space & Earth / Earth Sciences

created Mar 11, 2012 | popularity 3.8 / 5 (28) | comments 132 | with audio podcast

Greenland's pronounced glacier retreat not irreversible

In recent decades, the combined forces of climate warming and short-term variability have forced the massive glaciers that blanket Greenland into retreat, with some scientists worrying that deglaciation could become irreversible. ...

Space & Earth / Earth Sciences

created Jan 31, 2012 | popularity 3.7 / 5 (3) | comments 0

Evidence of past Southern hemisphere rainfall cycles related to Antarctic temperatures

Geoscientists at the University of Massachusetts Amherst and the University of Minnesota this week published the first evidence that warm-cold climate oscillations well known in the Northern Hemisphere over ...

Space & Earth / Earth Sciences

created Jan 17, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Denmark names first Arctic envoy

Denmark, which is planning to lay a claim to the North Pole sea bed, on Tuesday named its first permanent envoy to the resource-rich Arctic.

Space & Earth / Earth Sciences

created Jan 17, 2012 | popularity 4 / 5 (1) | comments 1

Ice sheets can expand in a geologic instant, Arctic study shows

(PhysOrg.com) -- A fast-moving glacier on the Greenland Ice Sheet expanded in a geologic instant several millennia ago, growing in response to cooling periods that lasted not much longer than a century, according ...

Space & Earth / Earth Sciences

created Dec 14, 2011 | popularity 5 / 5 (4) | comments 9 | with audio podcast

2010 spike in Greenland ice loss lifted bedrock, GPS reveals

(PhysOrg.com) -- An unusually hot melting season in 2010 accelerated ice loss in southern Greenland by 100 billion tons – and large portions of the island's bedrock rose an additional quarter of an inch ...

Space & Earth / Earth Sciences

created Dec 09, 2011 | popularity 5 / 5 (21) | comments 20 | with audio podcast

Federal report: Arctic much worse since 2006

(AP) -- Federal officials say the Arctic region has changed dramatically in the past five years - for the worse.

Space & Earth / Environment

created Dec 01, 2011 | popularity 4.9 / 5 (11) | comments 15

Extreme melting on Greenland ice sheet, team reports

The Greenland ice sheet can experience extreme melting even when temperatures don't hit record highs, according to a new analysis by Dr. Marco Tedesco, assistant professor in the Department of Earth and Atmospheric Sciences ...

Space & Earth / Earth Sciences

created Oct 25, 2011 | popularity 4.6 / 5 (12) | comments 7

Greenland

Greenland (Danish: Grønland; Kalaallisut: Kalaallit Nunaat, meaning "Land of the people" ) is an autonomous country within the Kingdom of Denmark located between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically associated with Europe (specifically Denmark) since the 18th century.

In 1979, Denmark granted home rule to Greenland, with a relationship known in Danish as Rigsfællesskabet, and in 2008 Greenland voted to transfer more competencies to the local government. This became effective the following year, with the Danish royal government remaining in charge only of foreign affairs, security and financial policy, and providing a subsidy of Dkr3.4 billion ($633m), or approximately US$11,300 per Greenlander, annually.

Greenland is, by area, the world's largest island that is not a continent in its own right, as well as the least densely populated country in the world. However, since the 1950s, scientists have hypothesized that the ice cap covering the country may actually conceal three separate island land masses that have been bridged by glacier.

For more information about Greenland, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: climate change , glaciers , sea level , ice , ice sheet