Greenland

Melting glaciers contribute a third of sea-level rise

Last January, a study in Nature Climate Change showed the world's glaciers are the smallest they've been in human history, revealing radiocarbon material that hasn't been exposed for 40,000 years. Now, new research published in Nature quantifies how much the world's lost glaciers have contributed to rising sea levels. From …

Greenland glacier melt was faster in 1930s than today

Chance discovery of 80-year-old photo plates in a Danish basement is providing vital new clues into how Greenland glaciers are melting today. Researchers at the National Survey and Cadastre of Denmark - that country's federal agency responsible for surveys and mapping - had been storing the glass plates since explorer …

Arctic melt releasing ancient methane

Scientists have identified thousands of sites in the Arctic where methane that has been stored for many millennia is bubbling into the atmosphere. The methane has been trapped by ice, but is able to escape as the ice melts. Writing in the journal Nature Geoscience, the researchers say this ancient …

Riddle of rising sea solved, scientists claim

Massive extraction of groundwater can resolve a puzzle over a rise in sea levels in past decades, scientists in Japan said on Sunday. Global sea levels rose by an average of 1.8 millimetres per year from 1961-2003, according to data from tide gauges. But the big question is how much …

High chance of Bangladesh sinking under rising sea levels

Science as a contact sport; inside the battle to save Earth's climate by Stephen Schneider is an illuminating book by a world renowned climate scientist and professor at the Woods Institute for the Environment at Stanford University. In 2007, Schneider received the Nobel Peace Prize on behalf of the International …

Greenland's Ice Melting Overestimated

A new study has some reassuring news about how fast Greenland's glaciers are melting away. Greenland's glaciers hold enough water to raise sea level by 20 feet, and they are melting as the planet warms, so there's a lot at stake. A few years ago, the Jakobshavn glacier in Greenland …

Greenland's ice cover appears to be sliding into the ocean

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 of Colorado Boulder-based Cooperative Institute for Research in Environmental Sciences. Such lake …

A tale of two hemispheres

A reconstruction of temperature from proxy records shows that the rise in global mean temperature closely resembled, but slightly lagged, the rise in carbon dioxide concentration during the last period of deglaciation.

Collapse of polar ice sheets during the stage 11 interglacial

Contentious observations of Pleistocene shoreline features on the tectonically stable islands of Bermuda and the Bahamas have suggested that sea level about 400,000 years ago was more than 20 metres higher than it is today. Geochronologic and geomorphic evidence indicates that these features formed during interglacial marine isotope stage (MIS) …

Greenland ice most vulnerable to global warming, says study

Washington: The Greenland ice sheet appears more vulnerable to global warming than previously thought, as a small increase in temperature could melt it completely and lead to a catastrophic sea-level rise, claims a new study. The ice sheet may lose its ability to grow once global warming reaches 1.6 degrees …

Greenland ice melt seen at lower temperatures

The complete melt of the Greenland ice sheet could occur at lower global temperatures than previously thought, a study in the journal Nature Climate Change showed on Sunday, increasing the threat and severity of a rise in sea level. Substantial melting of land ice could contribute to long-term sea level …

Greenland Ice Melt Seen At Lower Temperatures: Studys

The complete melt of the Greenland ice sheet could occur at lower global temperatures than previously thought, a study in the journal Nature Climate Change showed on Sunday, increasing the threat and severity of a rise in sea level. Substantial melting of land ice could contribute to long-term sea level …

Scientists Melt Mystery Over Icecaps And Sea Levels

U.S. scientists using satellite data have established a more accurate figure of the amount of annual sea level rise from melting glaciers and ice caps which should aid studies on how quickly coastal areas may flood as global warming gathers pace. John Wahr of the University of Colorado in Boulder …

Gulf Stream: Charting the Chaotic Current That Warms Norway

The North Atlantic Current -- popularly known as the Gulf Stream -- warms Norway and Northern Europe. It is the chaos of the seas that warms the country, researchers have discovered. If its waters flowed smoothly north along the Norwegian coastline, the current would deliver far less warmth. Norway is …

Hunting for black gold in the oil and gas industry

Dealing with economic crises, environmental pressures and dwindling resources keeps the oil and gas industry constantly on its toes, says Kate McAlpine.

Arctic sea 'could be ice free by 2015

Arctic Sea could be ice free by the summer of 2015, a leading ocean expert in Britain has claimed. According to Prof Peter Wadhams of Cambridge University, the ice that forms over the Arctic sea is shrinking so rapidly that it may vanish altogether in four years' time, destroying the …

Marine protection in the Arctic cannot wait

Global economics, not declining sea ice, is driving ships to the Arctic Ocean. Only international regulation will protect the region, says Lawson Brigham.

Extreme Steps Needed To Meet Climate Target

New research, to be published in the journal Climatic Change in November, suggests humankind may have to remove carbon dioxide (CO2) from the atmosphere on a vast scale if emissions keep rising after 2020. The series of articles provide scenarios which will form the basis of the next report by …

World Atlas Ice Loss Claim Exaggerated: Scientists

The Times Atlas of the World exaggerated the rate of Greenland's ice loss in its thirteenth edition last week, scientists said on Monday. The atlas, published by HarperCollins, showed that Greenland lost 15 percent of its ice cover over the past 12 years, based on information from the National Snow …

World Atlas Ice Loss Claim Exaggerated: Scientists

The Times Atlas of the World exaggerated the rate of Greenland's ice loss in its thirteenth edition last week, scientists said on Monday. The atlas, published by HarperCollins, showed that Greenland lost 15 percent of its ice cover over the past 12 years, based on information from the National Snow …

Revisiting the Earth's sea-level and energy budgets from 1961 to 2008

We review the sea-level and energy budgets together from 1961, using recent and updated estimates of all terms. From 1972 to 2008, the observed sea-level rise (1.8 ± 0.2 mm yr−1 from tide gauges alone and 2.1 ± .2 mm yr−1 from a combination of tide gauges and altimeter observations) …

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