Right nextdoor to the Salton Sea is another focus for conservationists: the Mojave desert. It spans 25,000 square miles over California, Nevada, Utah and Arizona, and it contains the national parks Death Valley and Joshua Tree, among other attractions.
The are is home to thousands of different plant and animal species, many of which are found nowhere else in the world. But this vast wilderness could be threatened by another environmental interest, renewable energy.
In recent years, the Mojave desert has become a hot spot for the development of solar and wind power plants. Reporter Judith Mernit, who wrote about this for High Country News, joins the show with more.