Global climate shift feeds spreading deserts
Over the next 20 years some 60 million people in northern Africa are expected to leave the Sahelian region if decertification there is not halted, United Nations Secretary-General Kofi Annan said.
Over the next 20 years some 60 million people in northern Africa are expected to leave the Sahelian region if decertification there is not halted, United Nations Secretary-General Kofi Annan said.