Take a tour of a rooftop laboratory where scientists show how growing crops under solar panels can produce both food and clean energy.

Solar panels tend to get too hot on conventional rooftops, which can reach 150 degrees or higher, and that heat reduces their efficiency. Plants help cool them off.

The episode features Dr. Jennifer Bousselot, assistant professor at Colorado State University in the Department of Horticulture and Landscape Architecture.

A new scientific field proposes an idea that could help generate food and energy while reducing a building's cooling costs.