Arctic & Antarctic - page 6

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97% of the Greenland's ice sheet surface melted in mid-July

Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations in period of merely few days this month. Nearly the entire ice cover of Greenland, from its thin, low-lying coastal edges to its two-mile-thick

July 24, 2012

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Aurora australis over Concordia station in Antarctic

Scientist Alexander Kumar from European Space Agency (ESA) and his colleague Erick Bondoux photographed a stunning image showing Aurora Australis – the Southern Lights – glowing over Concordia station in the Antarctic, one of the remotest places on Earth. Image

July 19, 2012

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Massive iceberg breaks off from Petermann Glacier on Greenland

Another spectacular event on Greenland this year is second big calving of Petermann Glacier, following retreats of the Jakobshavn Glacier and lowest reflectivity of the Greenland ice sheet on record. This calving was expected to happen, as the rift in the glacier has

July 18, 2012

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Are we facing an end of Antarctic as we know it?

Regional warming, over-fishing, pollution, invasive species creeping into the area, ocean acidification and loss of sea ice around South Pole region are the most immediate threats for waters around Antarctic. And all those threats are linked to global levels of carbon

July 17, 2012

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Unusual sea ice retreat in the Beaufort Sea

Sea ice retreat in June is typical, as the summer solstice approaches in the Northern Hemisphere with long hours of sunlight to warm the Arctic and melt snow and sea ice. However, the first half of June 2012 brought unusually rapid ice loss.One area of rapid ice

July 07, 2012

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Researchers found evidence of warm periods in Arctic

Analytical results from the longest sediment core that has ever been drilled in the terrestrial areas of the Arctic have shown temperatures that were previously considered impossible for the Arctic Circle. In addition, a notable correlation of the warm periods in the

June 25, 2012

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Blue Marble 2012: The Arctic Edition

A newly released image from NASA shows off our home planet from an unfamiliar angle — our iconic blue marble, snapped by a satellite that circles the Arctic, is arrayed in frosty white. This latest portrait of Earth from NASA’s Suomi NPP satellite puts the icy

June 21, 2012

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Footage of Upsala Glacier capsizing

A tourist traveling on a catamaran in Argentina caught rare footage of the Upsala glacier flipping over.The huge iceberg lost a part of itself and then flipped over with a huge roar according to tourist who witnessed the event from catamaran and recorded it on

June 09, 2012

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Unexpected discovery - Arctic Ocean is richer in microscopic plants than any other ocean on Earth

Scientists have made a biological discovery in Arctic Ocean waters as dramatic and unexpected as finding a rainforest in the middle of a desert. A NASA-sponsored expedition punched through three-foot thick sea ice to find waters richer in microscopic marine plants,

June 07, 2012

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Shrubs in the Arctic tundra transformed into trees

Shrubs in the Arctic tundra have transformed themselves into trees as a result of the warming Arctic climate in the last few decades. The speed and magnitude of change is far greater than scientists had ever anticipated. If this continues and is replicated across the

June 07, 2012

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Unusual, strong and shallow M 5.6 earthquake hit Antarctic region - strong earthquakes continue globally

Magnitude 5.6 earthquake hit Antarctic region on Friday, June 01, 2012 at 05:07:01 UTC according to USGS and EMSC. The epicenter was located 742 km (461 miles) SW of Mt. Siple, Antarctica (77.026°S, 148.853°W). The depth of epicenter was 9.9 km (6.2 miles).It

June 01, 2012

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Scientists say shockwaves from melting icecaps are triggering earthquakes

High up inside the Arctic circle the melting of Greenland's ice sheet has accelerated so dramatically that it is triggering earthquakes.Scientists monitoring the glaciers have revealed that movements of gigantic pieces of ice are creating shockwaves that register up

May 27, 2012

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Circumpolar rivers most responsible for high levels of mercury in the Arctic

Toxic mercury in the arctic, long thought to be coming primarily from atmospheric sources, is also being carried into the region by rivers. The Arctic accumulation of toxic mercury is caused by both atmospheric forces and the flow of circumpolar rivers that carry the

May 25, 2012

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Scientists have found more than 150,000 sites in the Arctic where methane is seeping into the atmosphere

According to a report published in the journal Nature Geoscience, scientists have found more than 150,000 sites in the Arctic where methane is seeping into the atmosphere. The fragile and rapidly changing Arctic is home to large reservoirs of methane, a potent

May 22, 2012

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Greenland's glacier meltdown gives new insight for rising sea level

Greenland's contribution to rising sea level in the 21st century might be significantly less than the upper limits some scientists thought possible, a new study shows. Data shows a 30% speed-up in 10 years on average. With faster movements of the glaciers, ice and

May 13, 2012

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Ice melting on Lake Baikal

For several months each year, Russia’s Lake Baikal is covered by a thick layer of ice. Formation begins in late-December, and by mid-January the entire lake is usually blanketed. Come spring, the lake begins its long, slow melt. Patches of open water usually appear

May 10, 2012

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Retreating sea ice around Alaska sign of advancing spring

Over the winter of 2011–2012, the extent of sea ice in the Arctic Ocean was slightly below the 1979–2000 average, but conditions in the Bering Sea were different. There, sea ice extents were well above normal, reaching a record high in March 2012. Two factors

May 07, 2012