Aspen is one of three U.S. cities to run on 100 percent renewable energy as of today, according to city officials. The Colorado mountain town is best known for its posh ski resorts, but this beautiful town also has established itself as a leader in environmental stewardship.

I learned about George Price, a University of Montana professor of African American and Native American Studies, when I got to Missoula on August 21, as I was beginning my Edge of Change roadtrip, and began asking around about the megaload protests.

Bottle Bricks are a simple and accessible technology that can transform everyday plastic materials into a useful building material – plastic bottles stuffed full of trash until they are as compact as bricks.

A much-anticipated book in conservation and natural science circles is EO Wilson’s Half-Earth: Our Planet’s Fight for Life, which is due early next year. It builds on his proposal to set aside half the Earth for the preservation of biodiversity.

How have polar bear populations in the Arctic been faring since the U.S. put them on its endangered species list in 2008, and what efforts are underway to protect them?

I see with a poet’s eye toward beauty. The tiniest discoveries delight me. The sleek vole who scurried beneath my pot of portulaca. The grasshopper, pretending to be a peony leaf. The mourning dove feathers I’ve been so tenderly collecting, and now I’ve met the birds, sitting sweetly in my garden.

Keeping a tidy home isn’t just nicer to look at it – it’s better for our health. However, no one likes to spend their weekends cleaning up. It’s better to keep your home clean as you go. Here are some habits of people who have all-around clean homes.

A study published last year suggested that hydraulic fracturing and proximity to active well drilling are associated with congenital heart disease and low birth weight newborns.

In a land where men are more valued than women, this unique village celebrates its daughters while creating a greener, healthier world.

From background radiation to chemicals in the food chain, environmental changes are contributing to a rapid global rise in neurological disease.

The planet Earth, with mankind's help, is leap-frogging into sweltering new territory.

Palm oil — which appears in a dizzying amount of food and cosmetic products, and is a feedstock for biofuel — poses many environmental problems.

Obama has protected more than 260 million acres of public lands and waters; more than any other president.

The killing of Cecil the lion in Zimbabwe has brought fresh attention to an entrenched, ongoing crisis in wildlife conservation.

From Italy to Luckenbach, Texas, practical ideas for improving your hometown...

Whether it’s a small organic farm or a large conventional operation, plastic is a huge part of modern agriculture.

While most people regard their home as a safe haven on the daily basis, if you’re not careful, your home could cause more harm than good.

Tiny house villages are a new part of the tiny house movement, yet they hold a lot of potential to transform lives and communities.

James Cameron and his wife Suzi are a force to be reckoned with when it comes to environmentally friendly inventions.

In the Sierra Nevada, North Fork Mono Indians are working to thin the forest, with the goals of saving water and preventing forest fires. They have been using this approach for centuries, but now California's severe drought means these ancient techniques are being looked at as a possible long-term solution.

For geographer and author M Jackson, knowing climate science isn’t enough. We need to get our hearts involved too.