Climate Change
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Science, politics and economics of climate change
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First gas tanker crosses Arctic

First gas tanker crosses Arctic | Climate Change | Scoop.it

A large tanker carrying liquified natural gas (LNG) is set to become the first ship of its type to sail across the Arctic.

The carrier, Ob River, left Norway in November and has sailed north of Russia on its way to Japan.

The specially equipped tanker is due to arrive in early December and will shave 20 days off the journey.

The owners say that changing climate conditions and a volatile gas market make the Arctic transit profitable.

Long-term preparationBuilt in 2007 with a strengthened hull, the Ob River can carry up to 150,000 cubic metres of gas. The tanker was loaded with LNG at Hammerfest in the north of Norway on 7 November and set sail across the Barents Sea. It has been accompanied by a Russian nuclear-powered icebreaker for much of its voyage.

 

 

The ship, with an international crew of 40, has been chartered from its Greek owners Dynagas by the Russian Gazprom energy giant. It says it has been preparing for the trip for over a year.

 

"It's an extraordinarily interesting adventure," Tony Lauritzen, commercial director at Dynagas, told BBC News.

"The people on board have been seeing polar bears on the route. We've had the plans for a long time and everything has gone well."

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Poles apart: satellites reveal why Antarctic sea ice grows as Arctic melts

Poles apart: satellites reveal why Antarctic sea ice grows as Arctic melts | Climate Change | Scoop.it

The mystery of the expansion of sea ice around Antarctica, at the same time as global warming is melting swaths of Arctic sea ice, has been solved using data from US military satellites.

 

Two decades of measurements show that changing wind patterns around Antarctica have caused a small increase in sea ice, the result of cold winds off the continent blowing ice away from the coastline.

 

"Until now these changes in ice drift were only speculated upon using computer models," said Paul Holland at the British Antarctic Survey. "Our study of direct satellite observations shows the complexity of climate change.

 

"The Arctic is losing sea ice five times faster than the Antarctic is gaining it, so, on average, the Earth is losing sea ice very quickly. There is no inconsistency between our results and global warming."

 

The extent of sea ice is of global importance because the bright ice reflects sunlight far more than the ocean that melting uncovers, meaning temperature rises still further.

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