Rainer Stegmann retired in 2008 as Professor Head of the Institute of Waste Management at the Hamburg University of Technology. He has been a visiting professor at several Universities and has coordinated several international and national research projects. He is a member of the environmental advisory board for waste company Shanks, UK. And Chairman of IWWG (International Waste Working Group). Dr. Stegmann has authored more than 300 scientific papers and several international books.