Biofuel production is booming, up fivefold in a decade. Investment in biofuel technologies creates more renewable fuels and jobs, but critics argue that industry-friendly policies have artificially inflated demand. Producing green fuels like corn-based ethanol diverts land and water resources from food crops.
Biofuels can also drive up the cost of corn that is used for food, especially in developing countries that rely on imports of the grain. According to Timothy A. Wise of Tufts University, "The higher your import dependence, the higher your vulnerability to global price spikes." —Kelsey Nowakowski