Much to the scepticism of our readers we’ve covered hot rocks at least once or twice before. In a nutshell, it’s a form geothermal energy derived from pumping water kilometres underground where it gets heated enough (by hot rocks!) to then rise back to

According to the Spanish newspaper El País last week, Spain will be the first big buyer of CO2 emission rights from Eastern Europe, in order to fulfil the Kyoto Protocol. In 2007, Spain's emissions had

One designer tackles how the ubiquitous egg carton could be rethought in order to waste less.

When I caught up with Summer Rayne Oakes at a Fashion Delivers event in June, she only briefly mentioned her forthcoming project: Source 4 Style, an online marketing

In case you missed it (and you certainly may have in the midst of other current world affairs) it's Hemp History Week. The second annual one in fact. I imagine most TreeHugger readers don't need much convincing that

A photography fanatic creates beautiful iPhone docks as a homage to old cameras.

Creating romantic, shabby chic dresses to elegant, layered European-inspired pieces, designer Jacquie Tsang transforms boring thrift store clothing into something unique and stylish.

You might not give an outdated wool suit a second look, but these trendy bags make the most of discarded suit fabrics, transforming old into something new and fashionable.

A running shoe made from garbage may not sound like must-have sports equipment, but Adidas wants to illustrate how ocean trash can be turned into something new.

Finally, green shoe design is reaching mainstream levels.

In a tale of intrigue and derring-do, the crafty cephalopod slipped out of his enclosure and found his way to freedom.

Four miles from the shore of Key West, the fatigued iguana eagerly scrambled aboard the kayak and hitched a ride home.

SAMARA's cruelty-free apple leather is created from the waste of the juicing industry.

But not all locals are happy, saying the mayor is treating the city like a theme park.

This Fair Trade company has new cold-weather footwear for men and women.

A new report called 'Follow the Thread' assesses the willingness of 72 companies to publish important supply chain information.

Tar sands and thermal coal are out but natural gas and conventional oil can stay. For now...

In the grand scheme of things, $5.9 million is not a huge amount to take from fossil fuels. But when you reinvest in renewables...

Video profile of University of New Hampshire Ecoline™ project. Video credit:UNH and Waste Management.The beginning of a new decade reminds us to also look back at the past 10 years to see how everything from daily tasks to new technologies have evolved.

A pioneer of peak oil community action sits down to talk with her mother about a previous crisis and how she survived it.

Zero Mass Water's SOURCE device is a rooftop solar device that produces water instead of just electricity.

The unique paint could provide clean power to homes at a low cost.

Because of course you're thinking about water conservation in your yard in the middle of winter.

Vibrantly colored wire is saved from the landfill and woven into recycled fan cages to produce these fresh pieces of furniture.

The dead ones washing up on beaches are "just the tip of the iceberg."

Designer Orla Reynolds Designs a Bookcase Like a Stage Set for Small Spaces

Environmentalists marched in Istanbul to demand solutions to climate change (L) while members of Greenpeace (R) face jail time for protesting plans to build Turkey's first nuclear power plant. Photos: 350.org (L), Greenpeace Akdeniz

What happens when you find bees have made your home into their hive? You call Mike 'The Bee Guy' and document it their removal.

In China, it's shark fin soup, in Japan it's blue fin tuna for sashimi and sushi, and in the U.S. it's our love of nice thick fish fillets and billions of fish sticks consumed annually - these cultural habits are

On one side of the world, the hovering ash cloud is making it very, very difficult for millions travelers to get home and using up a lot of media air. Meanwhile on the other side of the

The ballooning rates of people coming to the Galapagos, as residents or tourists, over the past few years has created a variety of environmental concerns for the islands. Not least of these is waste management, as the

We have lots of waste plastic and not much use for it, so why not use it instead of asphalt or concrete?

...or does this augur the final breakdown of civilization?

Switching from fossil fuel powered cars could save 45,000 lives per year and on its own almost solve climate change

Using someone else's tools and space has forced me to adjust my approach to cooking.

Just think what the waste fat from 46 million Thanksgiving turkeys could fuel.

This Finnish design doesn’t look quite finished but it is ingenious.

photo: NASA (click to see large) Polly Higgins has been getting more press pushing for 'Ecocide' to be enshrined as an international crime, and now a new photo from NASA really shows what Higgins is talking about: The wholesale destruction of Semirara

A six-year dispute over mislabeled shipping containers has been settled, but the world can learn an important lesson from this.

Authorities in Ohio are warning residents to remain inside their houses after dozens of exotic animals had apparently broken free of an area wildlife farm and taken to the streets and highways. Police haven't said exactly

It's déjà vu all over again, with the old guard trying to stop the newcomers...

I thought we were being edgy when we gave Interface Studio Architects the Best Residential Architect Award as part of Best of Green this year, but I could not help but love the 100K house. Evidently neither could the US Green

Going green is going too far in the Province of Ontario

At the ConocoPhillips annual shareholder meeting last week, CEO James Mulva announced the company's withdrawal from the oil-drilling project in Block 39 of the northern Peruvian Amazon. It was a highly controversial project

Awamaki Lab's fashion-forward collection successfully pairs Peruvian textiles with modern styles.

Wildlife Conservation Society is treating the purloined parrots at a specially built care facility; some 900 have been released back into the wild.

Here is an architect who knows how to get people on their feet.

Architect Tamir Addadi squeezes a lot into a very small space

Not only did he have a startlingly brilliant brain for physics, but Stephen Hawking had a pretty good knack for life as well.

An astronaut-eye's view of Hurricane Florence from the International Space Station shows why everyone is kind of freaking out.