"America’s National Parks Face Challenges" [1]
"This fall may prove to be a watershed moment for the parks," as a six-part PBS series by Ken Burns highlights their glories and their problems -- air pollution, a changing climate, and needed upkeep among them.
Gregory M. Lamb reports for the Christian Science Monitor September 29, 2009. [2]
National (U.S.) [4]
Public [5]
Source: Christian Science Monitor [2], 09/30/2009