The U.S. is home to some of the widest streets and driving lanes in the world—and that's not something to brag about. Shima Hamidi, director of the Johns Hopkins Center for Climate-Smart Transportation, talks with Stephanie Desmon about a new report from the Bloomberg American Health Initiative that challenges the notion that wider lanes are safer. They also discuss how altering roads could not only help with safety, but our physical health and climate change adaptations. Learn more here: http://narrowlanes.americanhealth.jhu.edu/