produced by Centre Communications, Inc. in association with the National Center for Atmospheric Research ; producers, Ron Meyer, James M. Roberts and Erick Avari ; director, Ron Meyer ; written by Ron Meyer and James M. RobertsAmbrose Video Pub. [distributor]c2006
[producer, David Kennard ; director, Michael Taylor ; writers, Michael Taylor and David Kennard ; editor, Scott Mason]Distributed by PBS Home Videoc2005
Annika NilssonPublished on behalf of the Scientific Committee on Problems of the Environment (SCOPE) of the International Council of Scientific Unions (ICSU) and the United Nations Environment Programme (UNEP) by Wiley1992