I just found this interesting slider map that shows the changing zones over time--I'll use it in class next week if it's still 50 degrees in Philadelphia! http://www.usatoday.com/weather/climate/2008-04-23-gardening-map_N.htm
Tom Schrand Academic Associate Dean, College Studies Program Director, B.S. in Environmental Sustainability<http://philau.edu/schools/liberalarts/ugradmajors/envirosustain/> Professor of History College of Science, Health and the Liberal Arts Philadelphia University 4201 Henry Avenue Philadelphia, PA 19144-5497 (215) 951-2610 From: [email protected] [mailto:[email protected]] On Behalf Of Hirsch, Leonard Sent: Friday, February 03, 2012 10:47 AM To: '[email protected]'; GEP-ED Subject: RE: [gep-ed] ecosystem boundaries USDA. From: [email protected] [mailto:[email protected]] On Behalf Of Peter Haas Sent: Friday, February 03, 2012 10:18 AM To: GEP-ED Subject: [gep-ed] ecosystem boundaries I heard from a biologist neighbor that seed catalogues have moved their ecosystem regions northwards, presumably as a consequece of global warming. Does anyone know who is responsible for determining the ecosystem boundaries that are widely used in ecosystems textbooks, and presumably in agricultural policy in the USA? Peter M. Haas Professor Department of Political Science 216 Thompson Hall UMASS - Amherst ________________________________ No virus found in this message. Checked by AVG - www.avg.com<http://www.avg.com> Version: 2012.0.1913 / Virus Database: 2112/4783 - Release Date: 02/03/12
