Video: Get green tips from Arianna Huffington and Nancy O'Dell.

Learn the keys to making smarter choices at the grocery store.

Learn how a home energy audit can save big money in monthly energy bills

Clark Howard tells Jennie Garlington about one of his favorite energy-saving devices

Clark Howard offers more money saving tips on weather stripping and light bulbs.

Video: From Jeff Goldblum to Tricia Helfer to Arianna Huffington — see who is talking about the Mother Nature Network.

Chuck visits a unique community with an organic farm, three restaurants, thousands of acres of green space and EarthCraft homes.

Learn how a community was built with pedestrians in mind.

Video: Niecy Nash and Peter Fonda share what? Their smart eco-tips.

Video: Get eco-tips from Tia and Wilmer. Get eco-tips from Tia Carrere and Wilmer Valderrama. (Video by Gerri Miller)

Video: Greg Grunberg & Wendy Davis offer their eco-tips.

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula

These creative Halloween ideas don't require carving and can be used over and over again.

Whip up some cool Halloween costume ideas, starting with simple cardboard.

These coasters are a cinch to customize for the animal-lovers in your life.

Geometric crystal ornaments bring on the color, and they're easy to make too.

Who know you could build a functional car or virtual reality goggles from cardboard?

Keep your old TV and get an EnergyStar DTA converter if you want to take the environmentally friendly route.

Wyoming Gov. Dave Freudenthal feels that his state doesn’t need green building codes.

The U.S. Energy Department wants you to save green by painting your roof white -- as long as it doesn't make your neighbors see red.

The U.S. Department of Energy is providing a $50 million loan to Vehicle Production Group for the creation of an eco-friendly accessible car.

Sixteen teams from colleges across the country spent three years building hybrids, plug-in hybrids and even hydrogen cars. This week in Washington, they met in

App developers can enter to win up to $30,000.

The College's partnership with Decorah, Iowa is featured in this DOE video.

Some of the nation's most recognized brands are joining the Department of Energy's Workplace Charging Challenge.

The International Garden Photographer of the Year honors 16 photographers for their macro images of plants and animals.

Ever wondered what different types of caterpillars look like before they transform into butterflies? Here are 10 instagram-worthy before-and-after photos

A hybrid that would be cold-hardy and suitable for outdoor planting may be available for home landscapes in a few years.

Newman’s Own gives all of its profits to charity, like the one that helps Kadin Hoven and his family escape the difficulties of chronic illness.

Gardener Donna Stumphf wanted to grow a few vegetables for the needy and ended up with more than 1.5 tons.

Vacationers are becoming wary of theme parks as the swine flu outbreak worsens.

Contaminated sites being used to house wind farms, solar arrays and geothermal power plants.

Moose lasagna, a hot seller at European stores operated by the world-dominating purveyor of flat-pack furnishings, is found to contain trace amounts of pork.

A new study suggests there should be official rules on how often doctors clean these essential tools.

Dozens of sunken ships off U.S. coasts, such as the Jacob Luckenbach and USS Arizona, are leaking oil or could in the future.

Reusing old household items can give your home a fun, rustic dimension.

Millions of bottle deposits go unclaimed in the exceptionally tidy Danish capital each year.

Hey nosey garbage man, you got a warrant?

A fleeting ban on the ubiquitous landfill-clogger is overturned by a Manhattan judge.

Meanwhile in England, shopping basket theft is on the rise.

North Carolina State University's new pizza box composting project raises the bar for college recycling programs.

Japanese scientists have found a special bacteria, Ideonella sakainesis, that likes to eat polyethylene terephthalate, better known as PET.

Bonnaroo's food waste program gets food to those who need it most and composts the rest.

Kitchen 'waste' liquids like pickle juice and potato water can be reused to enhance culinary creations and a whole lot more.

Though composting is great for your garden, there are some man-made and natural items that can ruin the whole pile.

The deposit-based Norwegian approach to plastic bottle recycling is an attractive, effective one.

Starbucks just recycled 25 million unused Starbucks cups, and that's good news. But don't ditch your reusable travel mug just yet.

A new study suggests confusion can be a powerful learning tool, but only under the right circumstances.

By turning coffee waste into auto parts, this collaboration builds on the two companies' commitments to environmental stewardship.

A 'living' wrapper called kombucha slime could ease the world's plastic pain.