PIC TAKEN SUNDAY, NOV. 26, 2006 MADE AVAILABLE WEDNESDAY DEC 14 2006 A young boy takes water from Lake Chad to drink, in Koudouboul, Chad, Sunday, Nov. 26, 2006. The lake that once provided adequate livelihoods for 20 million people in west-central Africa, from Chad, Nigeria, Cameroon and Niger, has lost 90 per cent of its surface area in 30 years. (AP_Photo/Christophe Ena)