Biofuels--Maybe Not So Good
Some recent Studies suggest that most biofuels actually cause more greenhouse gases when you take into account the the emissions generated to produce these biofuels. In the US, it's really the giant agricultural companies pushing corn based ethanol and soy based biodiesel. There are really inefficient options and the only reason they're even considered is the huge subsidies for corn and soy. The subsidies for these products are also help make unhealthy food so cheap and driving the obesity epidemic in the US.