Mary Anne Hitt

At public hearings in Chicago and Washington, D.C. yesterday, supporters, public health officials, and scientists are testifying in favor of the Environmental Protection Agency's Carbon Pollution Standard, the first-ever limit on life-threatening carbon pollution from power plants. 

Thousands of Americans have already spoken out via email in support of these...

It's amazing how much can change in a year. At this time in 2011, we were testing our hair for mercury as a way to encourage the EPA to adopt strong mercury pollution protections -- which the agency did. I was also celebrating generating my first clean kilowatt of...

Although the clean energy economy is gaining steam and our use of coal is declining, my home region of Appalachia is still threatened by mountaintop removal coal mining.

We've seen it with the overturning of the veto for the massive Spruce No. 1 mountaintop removal coal...

I want to share a story with you about an amazing event that took place this past Earth Day. For three days, in 100+ degree heat, Native Americans led a 50-mile march to draw attention to the devastating effects of coal pollution on their community.

Both personally and professionally, the past four years have been remarkable for me. On the personal front, I welcomed my daughter into the world, which recharged my motivation to eliminate pollution and usher in a clean energy future. Professionally, I've worked with dozens of allies and millions of Americans to...

Nationwide, students are leading the way in pushing their universities and colleges to invest in innovative clean energy solutions.  There is a growing momentum on college campuses to move our nation off dirty, 19th-century fuels that are making people sick.

Twenty colleges and universities have won fights to...

This week, there were two big clean energy projects announced in California that are remarkable for a couple of reasons. Together, these two projects will power hundreds of thousands of homes with clean, affordable solar energy.

They will create thousands of good-paying jobs and billions in local economic benefits.

They...

The pollution caused by coal is serious business, as are the devastating affects coal pollution has on our health, our mountains, our air and water and our planet. But sometimes the claims made by coal boosters are truly absurd, and the Sierra Club has just launched a new...

Co-written by Nezir Sinani of the Kosovar Institute for Development Policy.

While the U.S. has stopped building new coal plants and has rejected 166 proposed coal plants in the past decade, some of our government institutions are, inexplicably, trying to force new coal plants on other countries....

Today, our nation is taking a historic step for our health and our children's future. The Environmental Protection Agency (EPA) and the Obama administration have just announced new carbon pollution safeguards that will protect clean air and the planet, while also spurring innovation and creating jobs in the clean energy...

As aging coal plants retire, Sierra Club activists, members and allies nationwide are doing innovative, exciting work to replace that power with clean energy. Americans know we must end our dependence on fossil fuels to provide cleaner, healthier air.

We also know that clean energy innovation is powering economic growth...

We are more thankful than ever for the recent mercury and air toxics protections released by Environmental Protection Agency Administrator Lisa Jackson and the Obama Administration.

Unfortunately -- but not surprisingly -- some polluters filed legal challenges to the new mercury protections on the very day they went into effect....

As coal use drops dramatically in the U.S. and clean energy continues to grow, King Coal is looking for new customers. The coal industry is now pursuing its corporate profits via coal exports at the expense of the health, safety, and quality of life of...

Today the Sierra Club and lovers of clean air nationwide reached a major milestone for public health. Sierra Club's Beyond Coal campaign joined with allies to mark the 100th coal plant retirement announced since January 2010.

The Crawford coal plant in Chicago became the 100th coal plant...

Members of Congress are not in Washington this week, but all eyes remain on them to help our economy recover. That's why it's shocking that Congress has so far failed to act on a common-sense measure before it that would ensure clean energy can continue to grow at a record...

The big news today is that the long-awaited mercury standards for mercury emissions from coal plants are now on the books, published today in the Federal Register. That's great news, and it also starts the clock ticking for attacks on the rule.

Senator Jim Inhofe of Oklahoma is first out...

On the heels of January's announced coal plant retirements in Ohio, Pennsylvania and Maryland, this week we received another announcement from FirstEnergy that it would retire three more of its coal-fired power plants in West Virginia. The plants are slated to close on September 1, 2012. Last month's major FirstEnergy...

This column was co-written by Justin Guay of the Sierra Club International Program.

That's the question we have been asking the U.S. Government over and over, after discovering their steadfast support for plans to build an extremely expensive, extremely dirty coal plant in Kosovo. We first

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. North Carolina has long been a clean air leader, from passing the landmark Clean Smokestacks Act a decade ago,...

When my husband and I decided to put solar panels on our West Virginia home last year, we thought we might make some waves in our small town, since we would be the first family in the historic district to go solar. Well, it turns out we were...