|

Part 2
|
Then, with groves of ancient sequoias in Yosemite National Park threatened by a raging wild fire, we speak with a leading expert on forest fire prevention and management. Stephen Pyne, the Regents’ Professor in the School of Life Sciences at Arizona State University joins us to discuss how policies preventing natural forest fires that make trees and forests healthier, have led to a buildup of underbrush fuel that makes it all but inevitable that forests and trees will be killed by much more intense and catastrophic fires.
|
 |