Experts convert old coal mines into carbon-sucking forests

Dramatic steps are needed to prevent potentially catastrophic levels of global warming, says the latest report from the British Intergovernmental Panel on climate change. Experts say that nature is some of the best ways to get the greenhouse effect of the planet out of the atmosphere. Restoring forests is a route. In West Virginia, where strip mines damage the earth, experts work on the recovery of forests that once covered large areas of the Appalachians. Steve Baragona of VOA has more.