The U.S. has one of the most advanced economies in the world. And yet the concrete infrastructure that supports it—the roads, bridges, sidewalks, and so on—is slowly crumbling. This deterioration requires complex repairs, causes long delays, and in the most severe cases can lead to structural failure.

Link: https://www.technologyreview.com/s/608717/how-mushrooms-could-repair-our-crumbling-infrastructure/