Climate change is the single greatest threat we've ever faced — not only to human society but to the Earth's web of life. The Center's Climate Law Institute was founded to unite our programs in ...

An analysis of oil and gas pipeline safety in the United States reveals a troubling history of spills, contamination, injuries and deaths. This time-lapse video shows pipeline incidents from 1986 to ...

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 ...

When a Chiricahua leopard frog wants attention, it snores — at least, its distinctive call sounds like a snore. But the sound of snoring around desert streams, springs and even stock tanks is a lot ...

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 ...

DESCRIPTION: Roughly five feet in length, Mexican gray wolves generally weigh between 50 and 80 pounds. Their coats are buff, gray, and rust colored, often with distinguishing facial patterns. They ...

The country has learned a lot since Rachel Carson's 1962 book Silent Spring alerted us to the hazards of poisonous chemicals. But pesticide use still poses major threats to imperiled wildlife and ...

Amphibians and reptiles are amazing creatures with clever adaptations that have allowed them to brave the millennia. Consider the Coachella Valley fringe-toed lizard's scaly hind toes, which resemble ...

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 ...

Every spring, male sage grouse gather to strut their stuff in riveting mating rituals. Punctuating their displays with swishing, hooting and popping sounds, males bob their heads, fan their tail ...

The yellow-billed cuckoo is sometimes called the "rain crow" because its song is often heard just before thunderstorms or summer showers. But this rare bird raises its voice less and less often in ...