This week on Smart City we have two authors who are re-imagining some persistent but outdated ideas from the 20th century.

is a journalist and author who runs the organization and website .   The site practices what he calls "Solutions based journalism" on the environment and has become the go-to source for forward thinking solutions on climate change and sustainability.  Alex joins us to tell us about this new vision for journalism and how to build a brighter future.  Alex is the author of "Worldchanging: A User's Guide for the 21st Century "

And we'll talk with author and Harvard professor William Julius Wilson.  He's written extensively on race in America from his seminal work, "When Work Disappears : The World of the New Urban Poor " to his latest, "More than Just Race: Being Black and Poor in the Inner City (Issues of Our Time)."  Professor Wilson joins us to talk about reframing the relationship between race and poverty.