In this episode, geologist Kip Hodges discusses how climate and mountain evolution influence each other in the Himalayas, the subject of his article in the August issue of Scientific American. And former astronaut Dr. James Bagian, currently the director of the Department of Veterans Affairs National Center for Patient Safety, talks about patient safety. Plus we'll test your knowledge about some recent science in the news. Websites mentioned on this podcast include the Arizona State University School of Earth and Space Exploration, www.sese.asu.edu; the National Center for Patient Safety, www.patientsafety.gov; and the Scientific American Digital Archive, www.sciamdigital.com.

Learn more about your ad choices. Visit megaphone.fm/adchoices