Kgnu - How On Earth

Do Fathers Matter? (start time: 3:07) If you’re a father or a son or daughter – which pretty much covers everyone – this interview should hit home.  Science journalist Paul Raeburn’s latest book -- “Do Fathers Matter? What Science Is Telling Us About the Parent We’ve Overlooked” – explores  what seems like a no-brainer question. But the answers he discovers surprised even him. After last week's pledge drive teaser, we now offer the extended version of host Susan Moran's interview with Raeburn. Mercury in Waterways (start time: 15:20) Next time you take a sip of mountain spring water or catch a wild trout, you might be getting a bit more than you bargained for. Scientists have found mercury in Colorado waterways and in the fish that swim in them. And recent research shows that wildfires in recent years may have added to the problem.  How on Earth's Jane Palmer talked with Joe Ryan, an environmental engineering professor at the University of Colorado. Dr. Ryan also directs AirWaterGas, a project studying the