FILE PHOTO: The Aurora Borealis (Northern Lights) is seen over a mountain camp north of the Arctic Circle, near the village of Mestervik, Norway September 30, 2014.REUTERS/Yannis Behrakis/File Photo
OSLO (Reuters) - Rapid shifts in the Earth's north magnetic pole are forcing researchers to make an unprecedented early update to a model that helps navigation by ships, planes and submarines in the Arctic, scientists said.
Compass needles point towards the north magnetic pole, a point which has crept unpredictably from the coast of northern Canada a century ago to the middle of the Arctic Ocean, moving towards Russia.
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