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Tag Archives: Arctic

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26 July 2015, DeSmog, Senators Call For End To Arctic Drilling As Shell Gets Permits To Begin Work In Chukchi Sea: Shell received the final permits it needed to begin drilling exploratory wells in the Chukchi Sea last Wednesday, but a group of Senators led by Oregon’s Jeff Merkley is calling for a ban on Arctic drilling altogether. According to the Associated Press, the permits are somewhat conditional: In granting the company the green light, the Department of the Interior said Shell can only drill the top sections of wells, or to about a depth of 1,300 feet, because critical emergency response gear, including a well-capping device in the event of a blowout or leak, will not be present for the foreseeable future. The capping stack and other emergency gear is on board the MSV Fennica, which is in Portland, Oregon for repairs after Shell opted to send the ship out of Dutch Harbor, Alaska on July 3 via a shallow and evidently treacherous route, choosing speed over safety. The Fennica is an icebreaker — a ship literally designed to break through ice, one of two such ships in Shell’s Arctic fleet meant to protect its drill rigs from unsafe ice conditions. But the Fennica somehow suffered a gash in its hull more than 3 feet long before even leaving the harbor and was forced to head immediately back to port. There is no word on how long the repairs will take. When the capping stack is available to be deployed within 24 hours, aDOI spokesperson told the Associated Press, Shell can apply for an amended permit that would allow the company to drill deeper. That is cold comfort to critics of Shell’s Arctic drilling plans, who have repeatedly pointed out that the remote Arctic waters of the Chukchi Sea, where the company plans to drill, will make cleanup of any spill extremely difficult even if Shell has all of its emergency gear on hand. An oil spill would be devastating, environmentalists argue, but any drilling activities are likely to be incredibly disruptive in the fragile Arctic ecosystem. Read More here

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21 July 2015, The Guardian, Arctic sea ice volume showed strong recovery in 2013, Cooler temperatures revived sea ice levels suggesting a rapid recovery was possible if global warming was curbed, scientists say: Ice in the Arctic staged a surprise revival in 2013, bucking the long-term trend of decline, according to the first analysis of the entire ice cap’s volume. The revival was the result of cooler temperatures that year and suggests that, if global warming was curbed, the Arctic might recover more rapidly than previously thought. The shrinking Arctic ice cap is one of the best known impacts of climate change. The indication that it could be reversible is rare good news for a region where climate change has driven up temperatures far faster than the global average.

The extent of Arctic ice has shrunk by 40% since the late 1970s, when satellite measurements began. But getting comprehensive data on the thickness of the ice, rather than just its area, was difficult until the European Space Agency launched the Cryosat satellite in 2010. The satellite’s 88 million measurements, analysed in Nature Geoscience, show that from 2010-12 the Arctic ice volume fell by 14%, in step with the warming trend of the last few decades. But in 2013, the ice volume jumped up by 41%. “It’s fair to say that none of us were really expecting that,” said Rachel Tilling, at University College London and who led the study. But she dismissed the idea of a wider recovery of the ice cap, saying that climate change is still driving average temperatures up, despite significant variation from one year to the next. “It was a cold year – that happens.”  In fact, while colder than recent years, the temperature in 2013 would have been regarded as normal as recently as the late 1990s. “This allowed thick sea ice to persist northwest of Greenland because there were fewer days when it could melt,” said Tilling. The research is significant as it shows the Arctic ice cap may be more resilient than expected. Tilling said: “You see Arctic sea ice as dwindling and in decline, but then there is a cold year and you get some of the ice back. It shows there is hope for Arctic sea ice, if you can turn the clock back to colder temperatures, which would need huge reductions in carbon emissions.” Read More here

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