Approaching downstate Decatur by car, it’s not unusual to smell the huge Archer Daniels Midland industrial complex before seeing it. The sweet aroma of fermenting grain wafts through vehicle windows and air vents, a sign that ethanol fuel is being brewed. That process, in turn, produces carbon dioxide, a heat-trapping greenhouse gas that contributes to climate change. Approaching downstate Decatur by car, it’s not unusual to smell the huge Archer Daniels Midland industrial complex before seeing it. The sweet aroma of fermenting grain wafts through vehicle windows and air vents, a sign that ethanol fuel is being brewed. That process, in turn, produces carbon dioxide, a heat-trapping greenhouse gas that contributes to climate change. Environment Phys.org – latest science and technology news stories