On a stretch of highway in Georgia, a project to create the world’s first sustainable highway is currently underway. A solar farm has been installed on the shoulder and “solar pavement” has been paved on the roads, and now a special crop is being planted along the road to absorb carbon. Instead of the grass you typically find along American roadways, a crop called Kenza that captures carbon as it grows can also be harvested to make sustainable paper towels and other disposable products that are typically made from trees. If the pilot goes well, it could serve as a model for other state transportation departments.