human
I've been hearing a lot about a new type of fuel that is made from corn. I'd like to learn more about it.
assistant
Corn-based ethanol has been around for a while, but the technology has improved significantly in recent years. It’s now possible to make ethanol from corn at a lower cost than gasoline and with fewer environmental impacts. Ethanol is a renewable fuel that can be blended with gasoline or used as a stand-alone fuel. It reduces air pollution and greenhouse gas emissions compared to petroleum fuels.