Corn prices are being buoyed by the confluence of higher ethanol demand, China moving solidly into first world status, and drought conditions worldwide. US prices for corn have risen due to increased demand for ethanol. China's demand for corn has risen due to its population being able to afford higher quantities of pork (China has the world's second highest per capita consumption of pork, and the pork comes from hogs which eat corn). Drought conditions the world over are making grain production more difficult.
Is it ethical that the US pursues corn based ethanol production in light of the fact that corn could be used elsewhere for food?