This week two scientists, Dirk Schulze-Makuch and Paul Davies, suggested in the Journal of Cosmology that it is time for humans to start colonizing Mars. Humanity needs some

If good design means longevity, Hubble is well on its way to redeeming the missteps that required high-tech space missions for vision correction before it could serve its purpose. Could it be a coinicidence that Hubble

Yet another bizarre, fact-free, and infuriating ruling has been handed down by British Columbia's Ministry of Children and Family Development.

A visual breakdown of emissions by country and industry.

But alas, nobody seems to listen to cycling commissioners in the UK.

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

Happy New Year! This week marks Carnival of the Green #208, and the first Carnival of 2010. Congratuations to all who have submitted entries and hosted over the years to make it such a success!

Dave Roberts and Richard Florida don't like it.

You can see these magnificent photo portraits of Londoners on a wall or on the web.

Behold, wet-handed readers, there's a better way.

The winner will have the opportunity to speak at TEDxManhattan 2014.

A micro fuel cell could extend mobile battery life and charge up portable devices, with just the addition of a little water.

The Redox Power System will use technology to produce energy more efficiently for far less money.

Hydrogen is abundant in water and full of energy. We just need a cheap way to get the hydrogen where we need it.

This furniture designer's stealth van conversion has been created as a "test lab" for mobile, "democratic" small space design.

Annie Leonard is having an incredible run with her short documentary The Story of Stuff. The film still gets 10,000 views per day and has already reached 7.3 million people over the 22 months since it was released. The film

The bad guys bought abandoned or repossessed homes, ripped out interior walls, illegally tapped into power and water, and grew pot commercially. What starts in

It's time to take David Cain's advice and "talk like we used to."

Sure, there are higher-tech ways of operating, but I'm just not interested.

"Has the global food system been irrevocably hijacked?" One filmmaker asks and begins to answer this frightening question.

Steven M. Johnson beat the GrubHub by 25 years.

The historical character of this old Saigon building was preserved with a fresh and respectful makeover.

Let that sink in for a second: Over a period of 18 hours and 40 minutes on September 29th, Muhammed Yousuf Jamil, a Lance Naik (Lance Corporal) in the Pakistani Army singlehandedly

It's like that 1965 movie Crack in the World, where drilling for geothermal energy causes all kinds of problems. There are such high hopes for real geothermal power; there is a lot of heat down there that can vaporize water and run turbines.

Indonesia may not be tapping into much of its superior

You will find your ikigai at the intersection of what you are good at and what you love doing.

This Japanese approach to managing household spending may be over 100 years old, but it's as relevant as ever.

When I asked whether vegans can eat carrots grown with manure, some commenters found the question despicable. But my intention was not to question anyone's commitment, nor to lessen the

In which I try to clear up some misconceptions.

And it is beautiful too.

I could write this post in my sleep, it is such a tired playbook that happens so often in real estate development.

It really could be the future of sustainable, green and healthy housing.

After promising not to use sodium lauryl sulfate in any products, The Honest Co. is under scrutiny after two lab tests found significant amounts of the chemical in its laundry detergent.

Washing and drying clothes can take a toll on your wallet and the planet – these easy tips make it better.

Chevron Toxico: Chevron Produces Phony Online News Coverage to Spread Misinformation about Ecuador Disaster "To promote a misinformation campaign about its role in the oil contamination of a pristine area of the rainforest in Ecuador, Chevron recently

Good Guy Leo strikes again!

The themes of this stunning little house are copper, lots of natural light, and participation within an intentional tiny co-housing community.

Why do people do this kind of thing?

(Image: NY Times As the world becomes a more perfect place, where elephant landmine victims walk again, streetsigns are best used as jewelry, and coal plants get the royal STFU, we're gonna need more handy little things like the VeloPocket. Along with

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

Remixed from thrift store finds, these lovely but functional garments pieces are fanciful and feminine.

Shoppers can now choose to support a broader range of social issues.

A brush with death helped this family focus on the most important things in life, prompting them to convert a bus into a DIY motorhome.

A Today Show bit today is perhaps the grossest example yet.

The climate movement must be about more than Keystone XL, write four climate activists.

House of Representatives voted in favor of the XL Keystone pipeline project, in an attempt to bypass executive authority.

After the House of Representatives approved legislation pushing the Keystone XL forward, the Senate has rejected it.

A new twist in the plot for the controversial pipeline, as TransCanada asks for a suspension of its application.

Before Stonyfield Farm was a $325 million company, Gary Hirshberg was milking the cows and trying to get the bills paid. Now, as the largest organic yogurt-maker, he is fulfilling the original mission: make money and save the world. From milk cows to

The Transition Movement - a community-centered response to peak oil and climate change - has been described as "the biggest urban brainwave of the century." Join us to chat with its founder.