Wildfires & Water Reservoirs // Comet ISON

For the Sept. 3rd How On Earth show we offer two features: Wildfires Threaten Water Supplies: (start time 5:45) The wildfire burning in and around Yosemite National Park is now the fourth-largest in California’s history. Covering nearly 350 square miles, the Rim Fire is threatening the Hetch Hetchy Reservoir, which supplies residents in the San … Continue reading "Wildfires & Water Reservoirs // Comet ISON"