Some bioenergy crops are greener than others
In the Upper Midwest, switchgrass trumps maize at boosting ecological health
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/01/bm_1319053-LGPT_free.jpg?fit=860%2C460&ssl=1)
GREEN GRASS Growing switchgrass (left) for biofuels produces more biodiversity and ecological benefits than growing maize (right) does.
University of Georgia, USDA ARS, Bugwood.org