Dan Chu is campaign director for the Sierra Club's Our Wild America project.
Latest Stories from Dan Chu
Add your voice to the more than 700,000 other Americans who've urged the U.S. Fish and Wildlife Service to hold true to their duty to uphold the spirit of the Endangered Species Act
Dan Chu of the Sierra Club laments the closure of America's national parks and lands.
The director of the Sierra Club's "Our Wild America" campaign explains.