A number of Russian scientists have been arrested and charged with treason in recent years for allegedly handing sensitive material to foreigners.
The polar bears have been forced to the edge of northeastern village Ryrkaipy as unusually warm temperatures prevented coastal ice from forming, preventing them from their usual grounds.
The $158 million expedition will see scientists from 19 countries, including Germany, the US, Britain, France, Russia and China.
This June was the hottest on record, beating out June 2016 — so far the hottest year ever.
On a recent expedition to Greenland, TRT World correspondent Andrea Sanke saw how some countries and landscapes are suffering as global temperatures rise, and makes a very personal plea.
Temperatures in the Arctic are rising at twice the rate of the rest of the globe, and melting ice has opened vast untapped oil and gas reserves to potential commercial exploitation.
Eight states have direct control over land in the Arctic. With ice melting faster than previously thought, the global contest for economic resources there has begun. And Russia is gaining ground, while China is buying stakes and influence.
A brutal cold wave that has killed at least twelve people moved eastward after bringing temperatures in US Midwest lower than those in Antarctica.
Russian actions in the Arctic region, especially those involving China's geopolitical rival India, are raising the stakes for commerce and security in the potentially lucrative region.
A man in his 40's suffered head injuries after he was attacked by a polar bear but there has been outrage on social media against the killing of the animal.
A study published in the research journal Antiquity warned that global warming was hastening the thaw of permafrost and coastal erosion that is threatening thousands of Arctic archeological sites in Canada, Russia, Greenland and Alaska.
There was slightly less warming in many measurements than a record hot 2016, but scientists remain concerned because the far northern region is warming twice as fast as the rest of the globe.
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