Environmental Preservation
John Muir's Yosemite
The father of the conservation movement found his calling on a visit to the California wilderness
Q&A - Ed Begley, Jr.
Actor and environmental activist Ed Begley, Jr. talks about living green
The Trouble with Bottled Water
Elizabeth Royte reflects on the backlash against commercializing a natural resource and responds to reader comments
Cut Your Use of Plastic, Plastic, Plastic
Recycling isn't enough
Up in Smoke
Amazon research that has withstood thieves and arsonists now faces its greatest challenge
Mountain Messengers
Scientists scale peaks and study plants to understand the impact of warming
Roots of the Sea
What mangroves give the world and why we can't afford to lose them
Ground Thaw
Geographer Christopher Burn explains why permafrost is thawing
Dreaming of a Green Christmas
Making Your Holiday Tree Eco-Friendly
A Prayer for the Ganges
Across India, environmentalists battle a tide of troubles to clean up a river revered as the source of life
India in Peril
Rakesh Jaiswal, founder of ecofriends.org, talks about the country's growing list of environmental problems
Midas Touch
To clean highly polluted groundwater, Michael Wong has developed a detergent based on gold
Water Works
Taking up the family business, Philippe Cousteau campaigns to save our oceans and rivers
Greg Carr's Big Gamble
In a watershed experiment, the Boston entrepreneur is putting $40 million of his own money into a splendid but ravaged park in Mozambique
EcoCenter: Greener Living
Smithsonian.com takes a look at common and easy ways to go green
Rain Forest Rebel
In the Amazon, researchers documenting the ways of native peoples join forces with a chief to stop illegal developers from destroying the wilderness
Waste Into Walls: Building Casas Out of Sand
A green technology guru heads to the dump in search of the stuff of dreams
Corn Plastic to the Rescue
Wal-Mart and others are going green with "biodegradable" packaging made from corn. But is this really the answer to America's throwaway culture?
ANWR: The Great Divide
The renewed debate over drilling for oil in Alaska's Arctic National Wildlife Refuge hits home for the two Native groups nearest the nature preserve
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