Good places to see the strange haunting northern Lights include Sweden (pictured), northern Canada, and other areas beyond the Arctic Circle.

这样古怪如魂的北极光可以在瑞典(如图)，加拿大和其它些北极圈内的地区看到。

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"Such a loss of Arctic sea ice has recently been assessed to set in motion powerful climate feedbacks which will have an impact far beyond the Arctic itself, " Sommerkorn said.

CNN: Arctic ice to vanish in summer, report says

And as ever in the Arctic, exploring Svalbard beyond its somewhat scruffy settlements carries strong echoes of the past.

BBC: Drawing near to the North Pole

Yet the melting Arctic will have geostrategic consequences beyond helping a bunch of resource-fattened countries to get fatter.

ECONOMIST: The melting north | The