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.

We are determined to stop these dirty coal exports across the region and instead build a clean energy future that protects the Pacific Northwest's environment, health and economy.

Shell wants a judge to block challenges to its drilling plans that no one's even made yet. The real message to anyone who believes America's Polar Bear Seas just might not be the smartest place to start drilling oil wells: get out of the way, there's money to be made.

It so happens that several particularly memorable environmental documentaries were screened this year at Sundance and I was lucky enough to see a few of them.

Still, if we forgo natural gas, what are our alternatives? And that was my stance too until I read McKibben's article. Now I'm fiercely on the environmental side. How did he persuade me? His masterful command of language.

Now, by retiring existing coal plants, we are saving lives, saving mountains, and saving the planet -- all while clearing a path for clean energy. Take a moment to celebrate this milestone for public health and the environment today.

Today's 100th coal plant retirement is an important milestone, but we still have a lot of road ahead. Our goal is to retire one-third of the country's dirty coal plants by 2020 -- and replace them with clean-energy alternatives.

Congress has so far failed to act on a common-sense measure that would ensure clean energy can continue to grow at a record pace. Tens of thousands of clean energy jobs hang in the balance.

When I was a kid, my parents took my siblings and me camping up and down the eastern seaboard. They tell me that I even learned to walk at a campground in Maine. Each time Mary and I take our own kids camping, I can feel their connection to nature get a little stronger.

Nationwide, communities are saying "No more!" when it comes to dirty coal. Americans are falling in love with clean energy and the good jobs it will bring.

We are committed to clean energy, and we are committed to good jobs. And we will continue pushing FirstEnergy to do the same.

It's time to stop thinking of natural gas as a "kinder, gentler" energy source. What's more, we do not have an effective regulatory system in this country to address the risks that gas drilling poses on our health and communities.

This is where the urgency and solidarity and audacious determination of national organizations -- and residents across the country -- are desperately needed, on a par with the tar sands movement. If we can stop the proposed Keystone pipeline, we can stop mountaintop removal.

A New Orleans open house held by Louisiana's coastal restoration authority last week on a draft of the state's 2012 Master Plan for a Sustainable Coast drew mixed, earnest and sometimes vehement comments.

Tuesday, Jan. 24, I testified at an EPA hearing in San Francisco to support proposed standards that would raise vehicle efficiency to 54.5 miles per gallon, with electric vehicles as one of the primary ways to meet this goal.

Barely a week after President Obama rejected the contentious Keystone XL pipeline proposal and his relationship with environmentalists reached a "high...

WASHINGTON -- President Barack Obama's decision Wednesday to deny a permit for the Keystone XL pipeline gave environmental advocates the rarest of sen...

Great clean air news out of North Carolina today -- the Sierra Club and four of our key allies are announcing a settlement that will retire 1,600-megawatts of dirty coal power.

Any Keystone XL permit issued now would be a blank check written to an oil company with a proven record of disregarding the rights of the American farmers and ranchers whose land the pipeline would cross and threaten.

The Colorado River needed millions of years to carve out the Grand Canyon. Letting mining companies run rampant could ruin it in the geological blink of an eye. Thank you and congratulations to the Obama administration for doing what's right.