During my last week of school this May, I got a surprise far better than good grades. A call from Sierra Club Headquarters in San Francisco confirmed that I had won the "Best Internship on Earth."

David Brower helped transform environmentalism from a polite cause dominated by don't-rock-the-boat upper-class conservationists to an activist movement that uses political action.

As communities program song and speech for Earth Day, we are reminded that it is also John Muir's birthday on April 21. Coincidence? I think not.

National Parks Week 2012 is April 21 to 29, and the National Park Service is celebrating by granting free admission to all 397 national parks. Thi...

if the potential of the America's Great Outdoors initiative is realized, here are three important ways it will update conservation policies for the 21st century.

Everybody knows about the great tropical rainforests in the Amazon, Southeast Asia, and central Africa. But it's not the location that makes a rainforest

The world is a very different place today from the Cretaceous period. The Tyrannosaurus Rex is gone, but the redwoods remain. Barely.

Glacier National Park could lose all its glaciers, Joshua Tree National Park all its Joshua trees and Saguaro National Park all its saguaros, according to a new report on climate change from NRDC.

The Sierra Club is devoting this entire week to helping use America's Best Idea to build a new generation of activists for the national parks.

I suspect those who only watch the first few episodes will be teetering on the edge of boredom. Those who stay around longer, or just cherry-pick an episode to watch among the later ones will end up much more excited and satisfied.

I hope that the Sierra Club continues to support the new proposed bill more enthusiastically than they have the "greenwashing" efforts of their shot-gun bride, Clorox Corporation.