Deep in the Sahara Desert’s Ennedi-Tibesti basin of northeastern Chad, 18 lakes persist in a landscape that receives two millimeters of annual rainfall. The Lakes of Ounianga exist because they tap into fossil water laid down during the African Humid Period more than 10,000 years ago – an underground reservoir that continues to feed these … Continue reading Lakes of Ounianga – Oasis in the Arid Sahara Desert, Chad