New Scientist       

Nomad’s land: Journey into the rugged heart of the Sahara

By Sean O'Neill

IT’S a place so remote it makes the middle of nowhere seem bustling. Yet for Stefan Kröpelin, it has an irresistible draw. Almost every year for four decades the veteran geologist and climate researcher has been leading teams of scientists to places like this, the Tibesti massif in the heart of the Sahara desert.

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