Glover, J DReganold, J PBell, L WBorevitz, JustinBrummer, E CBuckler, Edward S.Cox, C MCox, T SCrews, T ECulman, S WDeHaan, L REriksson, D2015-12-102010http://hdl.handle.net/1885/57135We agree with Georgescu and lobell that the effects of perennial bioenergy crops on hydrology and climate must be considered. However, our Policy Forum focused on the advantages of developing perennial grain crops (1), not bioenergy crops that can displace staple food crops.application/pdfen-AU10.1126/science.330.6000.33-b2015-12-09