Iowa is defined by fertile soil and gently rolling hills that were created millions of years ago during the Pleistocene epoch, though the forces that created Iowa's landscapes ages ago are still at work today in other parts of the world. Host Charity Nebbe discusses the power of glaciers with Neal Iverson, an Iowa State University geologist who will spend part of August living and working near a glacier in Iceland. Geologist Deborah Quade from the Iowa Geological & Water Survey also joins the conversation.