Canada's Mackenzie river valley is again being explored, as, more modestly, is its less promising Arctic offshore.

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The Inuit represent less than half the Arctic's indigenous people, who in turn account for only 10% of the region's population.

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But while enthusiastic about adventures the future may hold, Brossier is aware that others -- especially those with young children -- may find his nomadic lifestyle in the Arctic chill less than appealing.

CNN: Arctic vagabonds: French family makes home on polar yacht