Karl W. Butzer

Karl W. Butzer (August 19, 1934 – May 4, 2016) was an German-born American geographer, cultural ecologist and environmental archaeologist. 
Butzer was born in Mülheim, Germany. He was born studied at McGill University and at the University of Bonn.
From 1959 through 1966, he taught at the University of Wisconsin–Madison. He taught at the University of Chicago until 1984. After that, he went to University of Texas at Austin. 
Butzer died on May 4, 2016 in Austin, Texas at the age of 81.