By Andy May – Re-Blogged From WUWT According to Exxon-Mobil, 9% of the world’s energy came from biofuels in 2017. They do not expect this percentage to increase by 2040, and it may go down. For the most part it is a developing world fuel. Primary biofuels include dung, wood, wood chips and pellets. Secondary, […]

über Biofuels — US Issues