Ernst von Weizsacker is Dean of the Donald Bren School of Environmental Science & Management, University of California, Santa Barbara, USA. He is also the lead author of Factor Four (Earthscan 1998). Karlson 'Charlie' Hargroves, Michael H. Smith, Cheryl Desha and Peter Stasinopoulos are members of The Natural Edge Project, a Sustainability Think-Tank hosted by Griffith University and the Australian National University.
'A timely manefesto... focusing on solutions rather than problems [it] makes a persuasive case for accelerating the pace of change.' Factor Four review, The Financial Times