How has the shift to locally grown produce decreased greenhouse emissions?

Food grown nearby travels a shorter distance to reach consumers, so fewer tractor-trailers are needed to transport it across the country. Trucks burn fuel and release greenhouse gases, so reducing long-distance transportation lowers emissions. The correct choice is D, “Buying locally grown foods decreases the need for tractor-trailers to transport food across the country.”

AI-written and checked against the verified answer.