air pollution

Explore the Oil and Gas Development That Threatens Theodore Roosevelt’s Backyard

When a young Theodore Roosevelt owned and operated a cattle ranch in the badlands of western North Dakota in the […]

Are You Ready for a Bike Challenge to Help Protect Our National Parks?

Do you have what it takes to be a bike crusader for national parks? I wasn’t sure if I did. […]

Fracking-Cany-Rblekicki-Bigstock

The DeChristopher Effect: How Years of Controversy over Drilling for Energy in the Southwest Could Result in Compromise

On December 19, 2008, during the last few weeks of the Bush Administration, an oil and gas lease auction captured […]

The Navajo Generating Station, 12 miles from the Grand Canyon in Arizona.

6 Reasons to Act Today for Clean Air in Arizona

It’s no secret that reducing air pollution creates a host of benefits for human health and the environment. But what […]

The difference in pollution levels between 1990 and 2010 at Great Smoky Mountains National Park.

A Transformative Victory

A Q&A with Don Barger on Progress Reducing Coal-Based Pollution in the Southeast

Above: The difference in pollution levels between 1990 and 2010 at Great Smoky Mountains National Park. Photo courtesy of Colorado State University. […]