Nomad's land

• Autores: Stefan Kröpelin
• Localización: New scientist, ISSN 0262-4079, Nº. 3081, 2016, págs. 36-39
• Idioma: inglés
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• Resumen

  • The Tibesti is home to the Sahara's highest mountains. An aerial view shows the most notable features of this arid landscape: the striated lava flows and scattered craters that are key to its scientific interest. Most volcanic areas lie close to the active boundaries of tectonic plates; this is one of the few that does not. In happier climatic times the Tibesti was also home to ancient peoples, who left rock art and artifacts like pottery and arrowheads. Few scientists have explored the region, thanks to a killer combination of rugged terrain, remoteness and long-term political instability. It borders Libya, Niger and Sudan, and internal and external conflicts have made it a no-go area for long periods. Here, O'Neill discusses geologist and climate researcher Stefan Kropelin's study of Tibesti's geological signs of past climates.