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Published daily in Bend, Oregon, by Western Communications, Inc. Copyright 2007.
By Kenneth Chang / The Bulletin
May 9, 2008
Six thousand years ago, northern Africa was a place of trees, grasslands, lakes and people. Today, it is the Sahara — a desolate area larger than Australia.
Lake Yoa, in northeastern Chad, has remained a lake through the millennia, today surrounded by hot desert. Although little rain....
