date: '2006-11-18 20:34:08' layout: post slug: plant-hardiness-zone-changes-more-evidence-of-global-warming status: publish ref: http://www.arborday.org/media/mapchanges.cfm title: Plant Hardiness Zone Changes — More Evidence of Global Warming? wordpress_id: '138' categories: Science


I happened to come across an Arbor Day Foundation page that shows how plant hardiness zones have migrated north between 1990 and 2004. This seems like another piece of evidence pointing towards the reality of global warming.