Parts of the Appalachian Mountains are so buffered against climatic shifts they may provide a 'stronghold' against global warming, researchers report.

The O'Neill Passive House, America's first passive house retrofit project, requires as much energy to operate as a standard hair dryer.

On Hamburg's waterfront, world-class sustainable architecture has emerged not from lofty green goals but from practical questions like this one: How do you buil

Michael Pollan lays out his ideas about what it would take to reform the food system.

Pollan's best-selling book 'In Defense of Food' answered the question, 'What should I eat?' Now the book is a documentary, airing on PBS Dec. 30.

Grizzlies becoming unbearable, oil kills Gulf coral, GOP sparks power struggle, and more.

The Rocky Flats National Wildlife Refuge opens to the public Sept. 15 amid controversy and concerns.

Chesapeake Energy's Aubrey McClendon responds to a NYT report that suggests the natural gas industry is part of a Ponzi scheme.

As the government shutdown drags on, Andrés and his team jump in to help - again.

When Environmental Protection Agency Administrator Lisa P. Jackson appeared on The Daily Show, host Jon Stewart couldn’t resist asking.

The Daily Show's Jon Stewart interviews Lisa P. Jackson, the head of the Environmental Protection Agency.

Senate Subcommittee on Superfund, Toxics and Environmental Health will convene today to hear about the effects of everyday chemicals on the health of children.

A new world record is making the future of solar energy look pretty bright.

Billionaire philanthropist says he's 'doubling down' on efforts to reduce carbon emissions and replace half the nation's coal fleet with clean energy by 2017.

The compelling documentary 'Babushkas of Chernobyl' offers a haunting and beautiful picture of life in a disaster area thought lost to humanity.

You can watch Leo DiCaprio's "Before the Flood" free online.

Outside of the kitchen, garlic has many potential health, beauty and agricultural benefits.

University of Oregon architecture student Cameron Huber scores the top spot (and $2,000) in Hammer & Hand's beauty and brawn-seeking perFORM Design Competition.

To chill or not to chill? For these items often found in the refrigerator, the answer ranges from 'not always' to a resounding 'never!'

Who said old houses can't learn new energy-saving tricks?

Our houses are way more efficient than they used to be, but we're using more energy per capita than we ever have.

We can't just build better; we have to change the way we live.

The era of 900-watt-and-higher vacuum cleaners comes to an end in the European Union due to new efficiency standards.

Untreated, unfiltered water is a pricey new trend that many are buying into — even though "raw" water could really cause you some harm.

159 coral reefs were examined in the Asian-Pacific region, and 89 percent of those reefs were contaminated with plastics and disease.

Here's a rundown of the top 11 spaceflight stories of 2011, from the last mission of NASA's venerable space shuttle program to China's first-ever docking of two

NASA's crash dummies are worlds tougher than their car-testing cousins.

If you're not ready to go cold turkey with beef, we have some bean recipes to get you started in replacing just a meal or two.

You can reduce the amount of waste you create without much effort.

This new documentary is a love song to Big Oil, and it's underwritten by oil and gas interests. Watch the trailer with awe and wonder.

A study in the Lancet looked at over-60 walkers, and those who worked on a busy London street didn't fare as well as the park walkers.

From your heart to your head, here's why you should lace up your sneakers and walk.

This is what the skies over Beaumont, Texas, look like whenever one of the local refineries loses power.

The Caribbean nation of Haiti was once lush with trees and the animals that lived there, but now only a few sections of primary forest remain.

Zest up your holiday feast with these must-have sauces and spices.

Stocktails are simply savory cocktails made with broth, and we talk to an expert about why they're such a hit.

A medium-size solar flare erupted from the sun this weekend, hurling a cloud of plasma and charged particles toward Earth on a cosmic path that is expected to d

These unusual creatures are stunningly beautiful and surprisingly important to life on Earth. Show us what you know!

It's time for some healthy change. Here are some fundamental truths you need to know about diet, exercise and other wellness goals.

Sure herbs and spices taste wonderful, but do you know what benefits they provide to your body?

The 57,000-acre San Andres Refuge, which works to restore desert bighorn sheep, launched its quest for energy independence in 2005 and has implemented several s

Energy Secretary Steven Chu fields energy efficiency questions from the public.

The Guest-Imator is a digital portion calculator that even considers the amount of leftovers you want to have. It works for vegan meals, too.

Whether it's fresh or canned, pumpkin freezes really well.

In England, Tesco supermarket is overhauling its fresh produce department to fight food waste.

Second Helpings Atlanta provides a bridge between fresh, perishable food and the people who need it most.

Increasingly efficient computers belie the truth that our virtual world is using more and more electricity.

A light-emitting diode (LED) developed at MIT operates at 230-percent efficiency. That's not a typo. LEDs will provide 70 percent of the world's general lightin

The Black Hornet, which can be carried in a soldier's pocket, has an onboard camera that gives troops video and still images of hard-to-access places.

Sustainability played a key role at this year's CES with both the CEA and Bosch donating materials and funds to Habitat for Humanity green building efforts.