Author Abrahm Lustgarten joins the show to discuss his new book, "On the Move."
Lustgarten has written an account of what a massive population shift might look like with the overheating of the Earth. He describes four unstoppable forces as predictors to the uprooting of America: wildfires in the West; frequent flooding in coastal regions; extreme heat and humidity in the South; and droughts that will affect farming across much of the nation.
