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.
The deal is aimed at protecting an area of the central Arctic Ocean, roughly the size of the Mediterranean Sea, for at least 16 years.
US Secretary of State Rex Tillerson will host ministers from several Arctic nations including Russia's foreign minister. Trump's call for more drilling in the environmentally sensitive region is raising concerns.
Reciprocal military deployments and exercises between NATO and Russia are upping the ante.
Oil spill clean-up tests on ice show how hazardous accident in Arctic sea could be
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