Stretching from the High Sierra to the Mojave Desert, California's rivers are of critical biological importance, forging major wildlife corridors and linking several ecological regions. These ...

For every county in the United States, the map below shows information on all the animals and plants protected under the U.S. Endangered Species Act as threatened or endangered. To see the number of ...

The Center’s Population and Sustainability program addresses the impacts on wildlife and the environment that are caused by human population pressure and destructive consumption and production. We ...

Fast fashion is an enormous, rapidly growing industry, with the number of new garments made per year nearly doubling over the past 20 years and global consumption of fashion increasing by 400%. Waste ...

Like the polar bear on the opposite pole, the emperor penguin endures almost unfathomable hardships to breed and nurture each new generation — fasting for months through the planet's harshest winter ...

Three vital provisions give the Act its teeth. It’s “citizen-suit” provision lets public-interest groups and individuals petition and sue sluggish federal agencies to make sure the Act protects ...

The U.S. transportation sector is responsible for about a third of our country’s climate-damaging emissions. In California transportation is the leading source of greenhouse gas pollution, accounting ...

The tiny delta smelt is one of the best indicators of environmental conditions in the San Francisco Bay-Delta, an ecologically important estuary that is a major hub for California's water system — and ...

The spring pygmy sunfish has been teetering on the brink of extinction for the 70-plus years it's been known to science. Existing only in one spring complex in the Tennessee River watershed in Alabama ...

A slumbering Arctic fox in winter will wrap its long, bushy tail around its body for added warmth. Its feet are covered in dense fur to insulate against the cold and provide traction on the ice.

The variability among living organisms on the earth, including the variability within and between species and within and between ecosystems. Biological diversity, often shortened to biodiversity, is ...