Authors: Jonathan A Foley; Navin Ramankutty; Kate A Brauman; Emily S Cassidy; James S Gerber; Matt Johnston; Nathaniel D Mueller; Christine O'Connell; Deepak K Ray; Paul C West; Christian Balzer; Elena M Bennett; Stephen R Carpenter; Jason Hill; Chad Monfreda; Stephen Polasky; Johan Rockström; John Sheehan; Stefan Siebert; David Tilman; David P M Zaks Journal: Nature Date: 2011-10-12 Impact factor: 49.962