On the Oct 2 Recovery Zone, the focus is on trees and the host of reasons they are so critical to our lives.  Host Stephanie Potter speaks with pioneering forest canopy researcher Nalini Nadkarni abour her recent book Between Earth & Sky: our intimate connections to trees.  Also, Scott Fogarty, excecutive director of Friends of Trees who shares her passion for trees and is working to promote our urban forest canopy.  Music by Kevin McLeod.