A Warmer Arctic Challenges Troops Training for Subzero Warfare

Jammed guns and refreezing runways are among the problems facing military forces that train in the Arctic, where climate change is causing temperatures to rise and fluctuate more dramatically. 

NATO and Russia Flex Military Muscle in Arctic
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When 600 Dutch marines sawed holes in a frozen Norway fjord last month as part of their Arctic training exercises, and then took turns deliberately skiing into them, everything seemed to be going according to plan.

But when it came time to claw themselves back onto the ice, in their sodden winter gear, they encountered an unexpected problem. It was too warm.