Hyped-up fears of a coming Arctic war have, appropriately, cooled down recently. But Arctic ice is melting faster than ever, which could mean more activity — military and commercial — in an environment notoriously unforgiving to sensors and other location tools. Leave it to the Pentagon’s far-out researchers at Darpa to work on a solution: an all-seeing network of sensors to track what’s going on in the Arctic all year round — including, it seems, sensors placed on icebergs.
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