A scientific expedition to the Tibesti Mountains led by Dr. Stefan Kröpelin of the University of Cologne’s Africa Research Unit has returned to Cologne. The multidisciplinary research team explored the two highest volcanoes of the Sahara’s major mountain range and succeeded in collecting geological samples in the deep volcanic craters of Tarso Toussidé and Emi Koussi. Their analysis will contribute to the reconstruction of the past climatic cycles in the Sahara. The multidisciplinary team also conducted archaeological, botanical and wildlife surveys yielding interesting first results.