How On Earth

ACD scientists Bill Randel and Helen Worden spoke on radio station KGNU with Beth Bartel, host of "How On Earth", about how volcanoes can be used to trace atmospheric currents, and how Beijing's 2008 Olympic efforts to reduce pollution helped reduce global greenhouse gas emissions. The episode aired on Tuesday morning, July 31 2012, and you can listen to it online at KGNU. The NCAR segment begins with Bill at 11:30 minutes into the recording, and Helen is introduced at 20:40.