For 70 years, building out and expanding American highways have been core parts to the entire US transportation project. But the initial effort to connect cities and states has created gigantic problems in the subsequent decades. Instead of fixing many of these critical issues, too often we see cities and states double down on the problem and make our transportation system worse. And carbon emissions from the transportation sector are a huge part of the climate fight. So what do we do about highways as these roads continue to expand and draw investment?

Our guest, Megan Kimble, has been looking for the answers. In her new book, City Limits: Infrastructure, Inequality, and The Future of America's Highways, she both looks back at the origins of the American highway system and examines today's fight to determine what is happening and how decisions are being made that design our transportation system. We discuss the "freeway fighters" that are working to remove highways and prevent highways from being expanded, how federal investments favor highways over transit, how highways have been used to exacerbate racial inequities, and why climate activists are helping to make change.

Megan Kimble is an investigative journalist and former executive editor at The Texas Observer. She has written about housing, transportation, and urban development for The New York Times, Texas Monthly, The Guardian, and Bloomberg CityLab.

Check out City Limits: Infrastructure, Inequality, and The Future of America's Highways

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