Earth from Space: Lake Chad
Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios. In the one-hundred-fifteenth edition, discover this important water source for over 60 million people in Chad, Cameroon, Niger and Nigeria.
See also http://www.esa.int/spaceinimages/Images/2014/09/Lake_Chad to download the image.
30 million not 60 million