National Parks - Troubled Edens
Special | 56m 47s
Dubbed “America’s best idea,” they encompass 84 million acres of diverse landscape from the Everglades to glaciers to redwood forests. But in the 21st Century, America’s national parks face unique challenges. Are they being “loved to death?” Can they sustain their fragile ecosystems?
Aired: 03/29/17Video has closed captioning.