Daniel Ballou separates the working parts from the heavy parts to make a speaker system out of concrete blocks.

In tens of millions of years, Africa will lose a sizable chunk of its eastern coast.

Fatigability is a way to measure how fast you get tired.

Matthew Mazzotta's installation marries rainwater harvesting with the deeply pacifying sound of raindrops bouncing off a tin roof.

Conservative saver? Risky investor? Results of a new study suggest that your position in the family line-up may drive your financial decisions.

New tool rewards users for 'dropping' climate change facts into different online forums or comments on trending articles.

Indoor air pollutants are all around us, from radon and rodents to VOCs and NO2.

Feeling wheezy after buying a new sofa? Struggling with cat pee smell? Not to worry, your air-purifying hardwood flooring should take care of it.

NASA studied houseplants as a way to purify the air in space facilities, here are the plants that improve your indoor air quality best.

Step aboard Jerko, an off-the-grid houseboat/urban sustainability laboratory that's been moored in one of America's filthiest waterways: Brooklyn's Gowanus Cana

The EPA administrator fires back at a coal utility company during a Senate committee hearing.

The General Motors Lansing Delta Township Assembly Plant receives recognition for energy efficiency measures.

Social entrepreneur harnesses the power of stories to help illiterate communities leverage their ingenuity to find solutions to local problems.

Keeping discarded kitchens out of landfills is just the tip of the iceberg for this entrepreneur.

It takes more than just dedication and intelligence to be a pillar of the community.

The marbled crayfish didn't exist until the 1990s thanks to a mutation. Now, it's basically a self-replicating invasive species.

High winds and vacant land create the perfect recipe for tumbleweed terror in Victorville.

It's been a good week for MNN in the press as cofounder Chuck Leavell hits Jimmy Fallon's show and the pages of The Daily Beast and Reuters.

'Nashville' star Eric Close goes green by cleaning up after others.

New Discovery series 'Lone Target' turns Joel Lambert into human prey.

The co-founder of Soshal Group says if we want to influence the future of ethical business, we have to talk about it differently.

President Obama's power plant plan has gotten plenty of blowback from coal-state politicians, but it's popular with Americans.

Researchers warn health care providers that obesity is not the only factor that can contribute to Type 2 diabetes.

The social network's acquisition of the makers of the Oculus Rift headset promises to change the way we experience online media.

The number of updates you make a day, how often you use the 'like' button and even your photo album organization can tell your Facebook friends a lot about you.

Michigan state parks are teaming up with Bob Ross Inc. to plant lots of 'happy little trees.'

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

Coal has made Duke Energy wealthy, yet the company's CEO admits it can be dangerous. Will he solve the problem?

In observation of one of the original New Urbanist-style planned communities' 75th anniversary, Norris, Tenn. gets a self-sufficient prefab demo home.

Power Trip is a fascinating journey through our incredibly complex relationship with oil, energy and everything in between.

Helsinki is experimenting with a plan to match people with rides, making cars unnecessary.

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

A tour of the Bullitt Center in Seattle confirms that it's as green as it can be.

Co-owned by a quartet of couples, Llano Exit Strategy blends communal living and rural solitude.

Berlin startup Cabin Spacey has a clever idea for the city's unused rooftops.

Situated next to the High Line, Solar Carve Tower is specifically designed not to bogart air and natural light from its neighbors.

The U.S. Supreme Court will decide how the Fish and Wildlife Service can protect species thanks to a legal conflict over a tiny frog.

The latest tag team effort from the EPA and Department of Transportation is an ambitious one: the 60 mile per gallon car.

Ford revealed the new, more fuel-efficient 2013 Ford Escape at the L.A. Auto Show.

Get your remotes ready. Some strong programming is coming up in advance of Earth Day.

Mustang, Escape, Focus now come in more colors, with more renewable parts, than ever before.

Find out how this small Maine liberal arts school achieved its goal of being 100% carbon-neutral ahead of a 2015 deadline.

"Buy less, choose well, make it last," says the iconic designer.

In this gorgeous short film, satellite dish arrays from around North America join the sky in a celestial waltz.

The online retailer's new 'Election Heat Map' uses book-sales data to reveal a widespread Republican streak among its American customers.

John Brown, founder of the Slow Home movement, discusses the fundamentals of building and living in a greener house.

Half the world now lives in cities, and by midcentury 75 percent of us will be urbanites. To make our cities sustainable, look to the 2012 TED Prize and a fasci

Eight-year-old Gabi Mann loves her corvid friends, and they reciprocate with small trinkets and treasures.

Tea Party candidate has lots of followers on her website, but a few searches on the revamped site reveals little about issues.

Tired of throwing away so many food pouches? These reusable ones might help solve your problem.