Iowa

Studies warn that climate change will threaten corn production in coming decades. Meanwhile, farmers are experimenting with new planting methods in hopes of slowing soil erosion from torrential rains.

Dr. Tim Ihrig has almost become a member of the Avelleyra family. He's helping Augie and Phyllis, who've been married 60 years, lead the best lives they can under trying health circumstances. When Phyllis was diagnosed with congestive heart failure, Ihrig asked what she wanted from the rest of her life.

Right now, there are about a dozen full-time navigators and a few part-timers to help 200,000 Iowans make decisions about health insurance. In the countryside, it's particularly hard to get help to people who want it.