Plus: Heidi Klum’s Earth Day and Howard Stern’s animal instincts.

Markus Imhoof investigates the crisis in his dramatic documentary. A Q&A with the director of 'More Than Honey.'

Discovery hopes so as it debuts 'Shark After Dark.'

Marilu Henner and others stage reading 'Surviving Grace,' a play about Alzheimer's.

Comic artist Rob Lang gives animals a way to speak their piece with "Underdone Comics.'

Palm oil's effect on the environment and the people directly and indirectly involved with its creation is detrimental. Here are some of the issues.

Taiwan-based NMA.tv, famous for its satiric animations, releases a new video about Canada's decision to withdraw from the Kyoto Protocol.

The new U.S. plan to limit power plant emissions is 645 pages long. Here's what you need to know.

If things like saved lives and prevented illnesses have a dollar value, efforts to stabilize the climate might pay for themselves, two studies find.

The new U.N. climate agreement is being called 'a monumental triumph' and 'a turning point for the world.' Here are a few key points to keep in mind.

Cholesterol-lowing drugs called statins have been shown to increase the risk of diabetes in some people, but this potential harm is outweighed by the benefits o

The Big Picture Campaign is empowering youth to change the conversation about Type 2 diabetes with poetry that could help solve our country's food ills.

Why actually create your own status updates when your computer can do it for you?

Back in 1971, Jane Goodall observed a group of chimps break out in civil war. Now new social network analysis offers an explanation for this violent behavior.

Man's Facebook plea goes viral as people from around the globe help stock boy's shelves.

This will create the world's largest virtual graveyard.

Some say that news articles from questionable sites shared on social media swayed the election, so these students took the challenge on.

By taking stock of what you want from your internet experience, you can customize your time online with the slow web.

This New Years Eve, I'll be raising my glass of biodynamic champers to the success of energy and money-saving home improvement projects.

Eclipse glasses distributed to the homeless, plus where to donate your old eclipse glasses if you don't plan on reusing them.

Video: Rock star Bryan Adams chats about his Canadian homeland and what they're doing to stave off deforestation.

Video: Chuck Leavell, keyboardist for The Rolling Stones and the cofounder of MNN, finds out about the importance of having a single national wildlife refuge se

The secret to a longer, healthy life might have been living in our guts this whole time.

Human trials are set to begin on the treatment, which cured 100 percent of mice during animal trials.

Airbnb is offering free housing for cancer patients and the people who care for them.

Recession? What recession? Step right up as the coal industry is loading up on lobbyists.

Ashely Judd, newly minted foe of mountaintop removal mining, will be chatting live about the evil practice in about an hour on Daily Kos.

Migration forecasts developed by researchers at Cornell University help cities and building owners determine the best time to flip the switch.

Critics of the Via Verde project in Mexico City argue that making a busy beltway more aesthetically pleasing only encourages motorists to keep driving.

Environmentally-friendly practices aren't just for new buildings anymore. Their existing – and, in some cases, elderly – counterparts are catching on, too.

Paul Williams' landmark 28th Street YMCA in South L.A. emerges from a LEED Gold restoration project, historically significant identity still intact.

The Colorado-based school wants to buy itself from a cash-strapped parent organization, but it may have to close if it can't raise $2.5 million by Jan. 31.

From cheap fashion to the billion-dollar trash trade, the following five books demonstrate some of the key connections between economic and natural systems.

Global survival game places you in a biodiverse world that rises or falls based on how you protect or abuse its resources.

A survey of general scientific knowledge found that Americans aren't so science-savvy. How will you do?

Aerosol air fresheners contribute to, rather than reduce, indoor air quality problems. And they often contain toxic chemicals like formaldehyde and xylene.

Plants have a specialized form of communication to compensate for their inability to move, a PLOS One study finds.

Researchers have managed to pinpoint the time you're most likely to meet a spider.

In these budget-cutting times, biofuels may be on the chopping block. And with a presidential election looming, politics will play role.

Ethanol subsidies are such a wedge issue in Iowa that one candidate says he will stay away.

Annual event, which encourages people around the world to power down for one hour, teams up with the cast and crew of 'The Amazing Spider-Man 2'

This Earth Hour, celebrate the beautiful moments in nature that only occur after the sun goes down.

Norfolk Southern is working with GreenTrees LLC on a five-year reforestation project.

Apply to the 30-Day Electric Bike Challenge and you could be selected to receive an e-bike for a month in exchange for swearing off the use of your car.

Studies show that drivers older than 85 get into fatal accidents almost 4 times as often as teens do, and intersections are a problem.

Science Guy Bill Nye wants battery-powered stock car racers. But fans go for the noise.

The deal with the Tesla Model 3: 215 miles of range, zero to 60 under 6 seconds, $35,000 — but read the fine print.

Muncie, Indiana, police department lets residents pay off parking tickets with donations to the local animal shelter.

Greeting people you pass on the street with a smile and "Hello" is good for you and them.

It's a little bit Ewokian, a little bit New Urbanist and a whole lot intriguing.