Something unusual about the Johnson family of Mill Valley, California is that on garbage day they have nothing to be picked up by the trash collectors. For years, Bea Johnson has chronicled her family's zero-waste lifestyle on her blog. Now, she's published a book on how anyone can live the same way, "The Zero Waste Home."

Nicholas Brown heads up the sustainability programs at Arizona State University, one of the top schools in the field. We find out the amazing things they've done there and what the next generation of students might bring to the world.

Tom Appel, publisher of Consumer Guide Automotive tells us about the now growing after market for used electric vehicles, where you can find some good values.