Firor, John Authors > John Firor The Crowded Greenhouse Population, Climate Change, and Creating a Sustainable World John Firor and Judith E. Jacobsen 08/11/2002, Cloth $65.00 | Out of Stock ISBN: 9780300093209 The Changing Atmosphere A Global Challenge John Firor 09/26/1990, Paper $19.00 | ISBN: 9780300056648