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5 days ago
Why sea ice cover around Antarctica is rising?

Washington, May 22 (IANS) Why has the sea ice cover surrounding Antarctica been increasing slightly, in sharp contrast to the drastic loss of sea ice occurring in the Arctic Ocean? A new NASA-led study has found the geology of Antarctica and the Southern Ocean are responsible. The researchers used satellite radar, sea surface temperature, land form and bathymetry (ocean depth) data to s...

1 month ago
Arctic sea ice decline may equal negative record of 2012

London, April 21 (IANS) Evaluating satellite data about the thickness of ice cover, sea ice physicists are anticipating that the sea ice cover in the Arctic Ocean this summer may shrink to the record low of 2012. The data show that the arctic sea ice was already extraordinarily thin in the summer of 2015 and comparably, little new ice formed during the past winter, said the team from the...

1 month ago
North Pole was once ice-free in summer: Study

London, April 9 (IANS) Nearly six-10 million years ago, the central Arctic was completely ice-free during summer and sea-surface temperature reached values of four to nine degrees Celsius, an international team of scientists has revealed. They used unique sediment samples from the Lomonosov Ridge -- a large undersea mountain range in the central Arctic, while travelling on board Germany'...

1 month ago
Global warming hits Arctic sea ice wintertime extent

Washington, March 29 (IANS) Arctic sea ice appears to have reached a record low winter-time maximum extent for the second year in a row, according to NASA scientists. The new record low follows record high temperatures in December, January and February around the globe and in the Arctic. Every year, the cap of frozen seawater floating on top of the Arctic Ocean and its neighbouri...

1 month ago
Greenland melting linked to shrinking Arctic sea ice

New York, March 28 (IANS) The disappearance of Arctic Sea ice due to massive climate change is causing the surface of Greenland's melt area to increase, thereby fuelling a steep rise in the sea-level, finds a study. During summers, melting Arctic Sea ice favours stronger and more frequent blocking-high pressure systems. The high pressure tends to enhance the flow of warm, moist a...

4 months ago
Massive ice 'lid' melting uncorked CO2 at Ice Age's end

London, Jan 5 (IANS) As the Antarctic sea ice melted, massive amounts of carbon dioxide that had been trapped in the ocean were released into the atmosphere, suggests a new study reconstructing conditions at the end of the last Ice Age. The study includes the first detailed reconstruction of the Southern Ocean density of the period and identified how it changed as the Earth warmed.

1 year ago
Global sea ice diminishing: NASA

Washington, Feb 11 (IANS) The gains from sea ice increase in Antarctica do not cancel out the loss from the accelerated decrease in Arctic sea ice of the last decades, a study by NASA has found. As a whole, the planet has been shedding sea ice at an average annual rate of 35,000 square kilometers since 1979, the findings showed. Even though Antarctic sea ice reached a new record ...

1 year ago
Ocean warming melting one of largest Antarctica glaciers

Sydney, Jan 27 (IANS/EFE) One of the largest glaciers on the planet, Totten, is melting due to ocean warming, a phenomenon that demonstrates the vulnerability of East Antarctica and its role in increasing the level of the oceans. The Totten glacier, 120 km long and 30 km wide, is one of the largest glaciers on the planet and also one of the least understood glacier systems, Steven Rintou...

1 year ago
Robot sheds light on Antarctic sea ice

New York, Nov 25 (IANS) Using an underwater robot built by an Indian-American scientist, a team of international researchers has developed the first detailed, high-resolution 3-D maps of Antarctic sea ice. The Autonomous Underwater Vehicle (AUV) known as SeaBED provides accurate ice thickness measurements from areas that were previously too difficult to access. The AUV has been d...

1 year ago
Presidential visit helps India establish presence in key Arctic region

New Delhi, Oct 20 (IANS) With the resource-rich Arctic region becoming the focus of heightened attention, President Pranab Mukherjee's visit to the two Nordic countries of Norway and Finland last week was a crucial step by India to assert its willingness to have a strong presence in the Arctic Council and to work closely with the eight countries of the region. Mukherjee, who paid a six-d...

1 year ago
Antarctic sea ice at record high: NASA

New York, Oct 8 (IANS) Sea ice around Antarctica has reached its highest level since measurement started in 1979, NASA said. The upward trend in the Antarctic, however, is only about a third of the magnitude of the rapid loss of sea ice in the Arctic Ocean. The new Antarctic sea ice record reflects the diversity and complexity of the Earth's environment, said NASA researchers.

1 year ago
Arctic Sea ice helps balancing CO2 level

London, Sep 23 (IANS) Arctic Sea ice removes carbon dioxide (CO2) from the atmosphere and if Arctic Sea ice is reduced further, we will be face an increase in atmospheric concentration of CO2, says a study. Because of global warming, more and more parts of Arctic Sea ice melt in the summer and when these freeze over in the winter, the ice is thinner. As the Arctic summers get war...

1 year ago
Snow cover on Arctic sea ice has thinned significantly: NASA

Washington, Aug 18 (IANS) In an alarming revelation, NASA has confirmed that the snow on sea ice in the Arctic has thinned significantly in the last 50 years - by about a third in the western hemisphere and by half near Alaska. The research by NASA and University of Washington, Seattle recorded changes in snow depth over decades by combining data from various sources. In the stud...

1 year ago
Research questions satellite data over Antarctic sea expansion

Washington, July 23 (IANS) The Antarctic sea ice may not be expanding as fast as previously thought, a new research suggests, adding that there may be a processing error in the satellite data. Arctic sea ice is retreating at a dramatic rate. In contrast, satellite observations suggest that sea ice cover in the Antarctic is expanding and that sea ice extent has reached record highs in rec...

1 year ago
Underwater vehicle to measure Antarctic Sea ice

London, July 16 (IANS) In a bid to get a better understanding of the effects of global climate change, New Zealand scientists will begin a project to measure Antarctic sea ice from below this coming southern summer. Using a remote underwater vehicle, University of Canterbury professor Ian Hawes will measure the thickness and biological productivity of Antarctic Sea ice to understand its rol...

2 years ago
China's trapped icebreaker makes successful escape

Beijing, Jan 8 - Trapped Chinese research vessel and icebreaker Xuelong made a successful escape through heavy sea ice at 6:30 p.m. Tuesday. Xuelong, or Snow Dragon, has been making consistent efforts to veer around the whole day while navigating through thick floes, Xinhua reported. The vessel had a difficult time trying to make a turnaround rightward, which started at 5 a.m. Monday...

2 years ago
Chinese helicopter lifts passengers from trapped Russian ship

Beijing, Jan 2 - A Chinese helicopter Thursday transferred all 52 passengers aboard a stranded Russian ship to a safer place near an Australian rescue ship, 10 days after the MV Akademik Shokalskiy got stuck in ice in the Antarctic sea. The passengers, as well as luggage, scientific instruments and equipment, were flown to a safer place near the Aurora Australis by Xueying 12, a helicopter ...

2 years ago
Bad weather slows rescue effort for trapped Russian vessel

Canberra, Dec 30 - An Australian icebreaker is travelling slowly due to the poor weather and has so far come within 11 nautical miles of the Russian vessel trapped in the Antarctic Sea ice for the past six days, the authorities said Monday. The Russian ship, MV Akademik Shokalskiy, built in Finland in 1982, is carrying a team of Australian scientists and other passengers to conduct scientif...

2 years ago
Civil society groups urge governments to save planet

New Delhi, Sep 27 - Governments have been handed a firm mandate to act decisively on the climate crisis by a report released by the Intergovernmental Panel on Climate Change -. The IPCC report made it clear that human activities were responsible for climate change, the Climate Action Network - Friday said. The Climate Action Network - a group of 850 NGOs - said for the first time, th...

2 years ago
Salient points of IPCC report

* Extremely likely - 95 per cent certainty - that humans the dominant cause of global warming * Average surface temperatures up 0.85 degrees since 1880 * World temperatures to rise 2-4.8 degrees by 2100 * The rate of sea-level rise since the mid-19th century has been larger than the mean rate during the previous two millennia * Atmospheric concentrations of carbon dioxi...

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