Published January 25, 2012, 03:22 PM
New U.S. planting map for gardeners revised to reflect global warming
It's the first time since 1990 that the U.S. Department of Agriculture has revised the official guide for the nation's 80 million gardeners, and much has changed. Nearly entire states, such as Ohio, Nebraska and Texas, are in warmer zones.By: Seth Borenstein, AP Science Writer
