We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAgriculture, food systems, energy, and global change.AuthorsDahlberg KAPublicationScience (New York, N.Y.), 2000, Vol 290, Issue 5495, p1300ISSN0036-8075Publication typearticleDOI10.1126/science.290.5495.1300a