In this Nov. 2, 2012 photo, a woman walks toward a well 

In this Nov. 2, 2012 photo, a woman walks toward a well through clouds of dust raised by cattle in the wadi outside Louri village in the Mao region of Chad. For generations, the people of this bone-dry region lived off their herds, but climate change has meant that the normally once-a-decade droughts are now coming every few years. (AP Photo/Rebecca Blackwell)
Associated Press
In this Nov. 2, 2012 photo, a woman walks toward a well through clouds of dust raised by cattle in the wadi outside Louri village in the Mao region of Chad. For generations, the people of this bone-dry region lived off their herds, but climate change has meant that the normally once-a-decade droughts are now coming every few years. (AP Photo/Rebecca Blackwell)
View Comments