We dare you to keep a dry eye as you watch these amazing and emotional performances of our national anthem.

Nocturnal opera isn't just for owls, as these audio clips make clear.

Chicks dig drummers, apparently.

The quirky cover of Christmas tunes was designed to to highlight the importance of goats in poverty-stricken societies.

He may not have won an Oscar, but the director of "Gasland" isn’t backing off the natural gas industry.

A compromise in Washington state may be the example for the rest of the country to follow when it comes to cleaning up our energy sources.

Ron Paul has been a vocal figure in American politics since 1977, and he has developed a lengthy record on energy and environmental policy.

Some lumber is not eco-friendly; the trick is to find sustainable forests and other alternatives.

Pluto's moons are even stranger and more intriguing than scientists imagined, a new study reveals.

A new NASA video uses photos from New Horizons to give you a sense of what it would be like to soar over Pluto.

With Sonoma County in the bag, affordable prefab builder Blu Homes unveils its first project in Southern California: a remote, low-impact desert retreat owned b

LivingHomes once again teams up with manufactured home heavyweight Cavco for a trio of low-ish-cost, high-quality green prefabs that have nothing to do with Mar

Blu Homes celebrates the East Coast debut of the iconic Breezehouse with an open house weekend in New York's Hudson Valley region.

Airbnb celebrates its presence in L.A. with a city-wide 'hospitality experience' revolving around prefab studios with celebrity-designed interiors.

From Vo Tong Nghia Architects comes a finish-it-yourself dwelling that can be delivered throughout the Mekong Delta via long-tail boat.

A judge in Okanogan County, Wash. rules that an ill-sited prefab hut must be moved from its landscape-altering perch above the Methow Valley.

NYT and Google teamed up to find the most distinctive Thanksgiving dishes by state. Some of the more unusual ones have whipped topping in common.

Looking back at the first Thanksgiving offers a way forward for us, says Michael Berman.

Focusing on what we're thankful for can help us turn outward and express appreciation, especially during the holidays.

The 50,000-year-old, perfectly preserved forest is showcased like never before in a newly released documentary.

Researchers trace back the origin of all flowering plants to a single ancestor using a sophisticated data crunch.

The finding indicates that life on Earth began much earlier than previously thought.

The first animal to evolve on Earth was probably a sponge that existed around 640 million years ago.

The find confirms that America's earliest human inhabitants were here much sooner than previously thought.

HIV might never have become a global pandemic if it wasn't for the ecology of what is now known as Kinshasa, and what was then a 1920s colonial hub.

A whole new kingdom will need to be created to classify Hemimastix kukwesjijk, the organisms found in a random dirt sample.

Elasmotherium sibiricum, the so-called 'Siberian unicorn,' is not as closely related to modern rhinos as once thought.

A startling find in Wyoming radically changes our theories about the distant origins of our taxonomic order.

If dinosaurs had telescopes and had pointed them at Saturn, they might have seen a ringless world.

Researchers are calling the wild lands of 12 million years ago the 'Texas Serengeti.'

The Air Quality Egg was named one of Kickstarter's best projects of 2012.

Cyclists have "increased heart rate and respiration," resulting in more CO2 emissions, said state Rep. Ed Orcutt.

Scientists have created a microbe that converts carbon dioxide into biofuel, a discovery that might boost the battle against climate change.

This surprising discovery won't be enough to stop climate change, but it will help, researchers say.

The risk of 'severe, pervasive and irreversible impacts' is quickly rising worldwide, the draft report warns.

Cadbury will certify 300 million of its Cadbury Dairy Milk chocolate bars as well as its packaged cocoa, at a cost of £1.5m ($2.1m), by the end of summer.

Potters Fields in England is a perfect example of how to use design elements to make the landscape shine in the colder months.

Over 60,000 members of the People’s Liberation Army will help increase the total acreage of forested land in China from 21 to 23 percent.

Smart rooks collect litter at Puy du Fou, a historical theme park in Western France, in exchange for food.

While the Camp Fire rages over 100 miles away in the Sierra Nevada foothills, San Francisco experiences an air pollution emergency.

Researchers suspect it could be in reaction to melting sea ice as well as human noise pollution.

Two new video campaigns by Greenpeace are brave and forthright in making their point, but do they go too far?

A state legislator has an interesting and potentially viable way to avoid dealing with the EPA.

The wildfire in the Florida Everglades has spread to 32,000 acres, and officials are using all the resources they can to contain it.

After studying under Ansel Adams, Rob Decker is creating posters of all the national parks with a nod to the WPA posters of the 1930s and '40s.

A young parkgoer returned a rock she took from Smoky Mountains National Park along with a drawing and a nice letter.

A passive solar home in Japan boasts various energy-saving features and a sloping, stair-clad roof that doubles as hangout area/lounge for (hopefully well-behav

Michael Pollan explains how a variety of plants and animals make for healthy farms, which make for healthy people.

The president is getting a report card for his first 100 days in office from Michael Pollan and others. How's he doing on the food front?

Vodka, the top-selling spirit in the nation, is one of the first to go green.