Mass demonstrations welcomed President Obama to the Bay Area today and sent him a clear message on the Keystone XL Pipeline: Just say NO!

While President Obama's focus on climate change is a welcome, albeit belated, shift, it remains to be seen whether he will match words with action. More and more environmental organizations and activists are prepared to keep the pressure on to ensure he does.

* Obama administration accused of missing legal deadline * Two seal species would follow polar bear in threatened listing ...

It has saved 99 percent of the 1,482 native species under its care from disappearing forever. But the Act isn't just about avoiding extinction. It's about setting these species on a path to recovery. On that point, there are amazing stories worth celebrating:

Dolphins are washing up dead while fish disappear as oil and dispersants from BP's 2010 spill lurk in Gulf waters and marshes.

Shell is suing 12 environmental organizations to preempt legal challenges to exploration in the Arctic Ocean. It's a bully image that can only hurt, and Shell should know better because it's happened to them over and over again.

WASHINGTON -- Environmental groups filed suit against the Obama administration on Wednesday, alleging that U.S. federal officials illegally allowed wo...

It's a watershed moment for the Endangered Species Act. Signed in 1973, the Act has a long record of success -- think of where bald eagles, grizzly bears, gray wolves and peregrine falcons would be without it.

BILLINGS, Mont. — A federal judge was asked Tuesday to approve a pair of deals between the Obama administration and wildlife advocates that woul...

ANCHORAGE, Alaska — An environmental group on Thursday gave formal notice that it intends to sue the federal government for what conservationist...

This New Year's Eve, more than 600 volunteers for the Center for Biological Diversity will be handing out Endangered Species Condoms in order to incre...

From the Center for Biological Diversity's Kassie Siegel: The future of the mighty polar bear, the world's largest bear and one of the planet's most ...

BILLINGS, Mont. — Environmentalists said Tuesday they intend to sue the Obama administration to force it to restore gray wolves across the lower...

Scientists have for decades proposed mastering the elements to control the weather. But is tinkering with the Arctic Ocean -- the world's air conditioner -- by building a dam across the Bering Strait really a good idea?

by Sarah Laskow, Media Consortium Blogger A year ago, it seemed possible--likely, even--that President Barack Obama would sweep into the internation...

The Sierra Club's ability to successfully advocate for environmental causes doesn't depend on access to politicians. But they have opted for an "inside" game, and have thus dropped the ball on pressuring officials from the outside.

By Sarah Laskow, Media Consortium Blogger President Barack Obama announced this week that his administration would open areas from Delaware to Florid...

TUCSON, Ariz. -- An Arizona-based environmental group that fights to protect endangered species plans to distribute 100,000 free condoms across the U....

Palin had opposed the endangered listing for beluga whales in part by questioning the science and saying the listings would hinder oil and natural gas drilling.