Wave power is the oft-forgotten cousin of solar and wind power. It has huge potential, but it is not quite as far along as the better known sources of clean power, so it tends to be overlooked.

A new kind of hybrid generator promises to double the power output for the same surface area, by also harvesting energy from ocean currents.

This promising source of clean energy is facing an uphill battle.

The agency is offering up open source modeling software to scientists, engineers and garage inventors too.

When you think about it, it's really Moon power!

The Norwegian ship has been given a new clean energy life.

The wave energy generators would help to both generate power and dissipate the power of the waves crashing against the shore.

The city is getting bike lanes and light rail transit, and their new apparatuses are chosen to better fit the streetscape.

While we've seen many celebrities jumping on the green bandwagon, we've also seen them doing it for the real deal. Many have been eco-conscious for years--some are just realizing how important it is to promote a sustainable

Sad Anniversary digg_url = 'http://www.treehugger.com/files/2009/12/one-year-later-tva-toxic-coal-ash-spill-tennessee.php';A year ago, a massive coal ash spill took place in Tennessee. About 5.4 million cubic yards of ash ended up in a river and

Regardless of the outcome of high profile public debate--viz Waterkeeper Bobby Kennedy Jr v. Dirty Coal Don Blankenship smackdown tomorrow night at the University of Charleston--or vehement protest from the likes of youth

The obvious goodness of pairing pedal assist electric bikes with a bike sharing infrastructure is one of these great ideas whose time has come. In Tokyo, Sanyo recently installed 100 of their eneloop battery powered e-bikes at a "community" bike share

PNC, Citi, and UBS are the top three financial enablers of mountaintop removal coal mining, according to a new report by Rainforest Action Network and the Sierra Club that ranks ten of the world's largest banks.These

Late last month, when officer Shelley Hammonds of the Tennessee Wildlife Resources Agency received word of an animal in distress, it might have sounded like a routine rescue operation. Witnesses described

The delicately hued petals and striking brown florets of Tennessee's purple coneflower once seemed fated to live on only in description, or as a ghostly sketch yellowing on the page of some dusty botanical volume, yet today it's

Mattresses have plenty of reusable materials, but most recyclers don't want them. Landfills don't like them either. But a Tennessee nonprofit does.

Because everyone knows that bike paths are just the thin edge of the wedge. Next, they come for your cars.

Would you let corporations decide how climate science gets taught in your kids' classroom? That's what's happening in Tennessee.

Woops.

It may be old, dirty and coal powered now, but it was once a vision of a brighter future, was a giant stimulus project and helped win WWII.

Affordable housing doesn't have to look cheap, and LEED Platinum doesn't mean it has to cost a fortune.

Simple but striking, this small treehouse retreat was built by hand and furnished with repurposed flea market finds.

This ingenious design features a roll-up garage door and a drop-down deck on either side, allowing the home to feel even more spacious.

Outfitted with smart home tech and lots of storage space for outdoor gear, this small home feels 'just right'.

Who could possibly complain about brutalist architecture especially when it's framed with flowers

Do you plan it where there is lots of room, or do you put it where there is good transit accessibility?

In a word no. But people in cars seem to get a free pass for everything.

Building new roads has been a major contributor to the city's unsustainable growth, newly released Landsat photos show, but more of the same appears to be on the horizon.

A fisherman who had criticized illegal fishing practices loses an eye in an armed attack as diminishing fish stocks and increased debts create a volatile atmosphere.

Solar-powered buoy design seeks to reduce costs for fishermen and the risk of kerosene spills on Lake Victoria.

Using a dishwasher for storage makes a lot of sense; finally a dishwasher designed around the idea

From the 'know where you food comes from' file, the truth behind your turkey dinner.

"This is not concrete, this is nature!"

Nature and the environment are still a big part of this protest.

These "plug-and-play" donkeys, equipped with solar panels, allow sheepherders to catch up on the news and socializing while out on their rounds.

This renovated apartment incorporates some interesting storage concepts for a cleaner, brighter space.

This compact shelter is a place for a family to spend their summers in the middle of nature.

Help stop the rise of antibiotic resistance by buying a bird that's been raised drug-free.

You never know what climate you may end up in...

Tourists can witness it firsthand, thanks to Intrepid Travel's partnership with a local NGO.

All of which could be summed up in one statement: Turkish food is fantastic.

Why are we eating cardboard-like cereal and bland yogurt when we could be having a sensational meal?

We here at TreeHugger recently announced that the Carnival of the Green will now include a Twitter section.You can still submit as normal via email, of course, but this new part of the Carnival will be called "Best Green Tweets." So, if you use Twitter

We here at TreeHugger recently announced that the Carnival of the Green will now include a Twitter section.You can still submit as normal via email, of course, but this new part of the Carnival will be called "Best Green Tweets." So, if you use Twitter

We here at TreeHugger recently announced that the Carnival of the Green will now include a Twitter section.You can still submit as normal via email, of course, but this new part of the Carnival will be called "Best Green Tweets." So, if you use Twitter

We here at TreeHugger recently announced that the Carnival of the Green will now include a Twitter section.You can still submit as normal via email, of course, but this new part of the Carnival will be called "Best Green Tweets." So, if you use Twitter

We all can't go to Copenhagen this week, but there are so many ways to make our voice heard nonetheless. ThisPlace09 is an art and Twitter project that conveys personal thoughts about climate change to the delegates and the

Today there was new space added to the Twitter HQ, doubling their size. Designed by the lovely and talented Sara Morishige Williams (@sara), the newest spaces are consistent with the philosophy of the existing offices

A "moot court" will be held over Twitter for the first time ever, and students from 5 major Canadian law schools will argue an environmental law.

Citizen persistence at measuring and publicizing pollution levels results in a major turnaround by Beijing.