It's one thing to design to the Passivhaus standard; it is another thing altogether to prove it.

In a bid to meet the city's goal of recycling 60% of its waste by 2015, Seattle is turning its sights on food scraps that end up in the trash.

She wouldn't sell to the developer around her, and now it is a prime example of "demolition by neglect."

A large section of a 140-year-old Western hemlock tree is faithfully reconstructed by hand from cast molds, using tiny pieces of reclaimed cedar that have been carefully glued together.

These are interesting times for the Passive House movement in America, and this should be a very interesting conference.

And it is beautiful too.

You are not just buying a box but a full service design/build package. Could this take container architecture mainstream?

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.

Which really, is how every building and office should be designed.

Find out why one family found living on a renovated bus to be an appealing tiny-house-on-wheels alternative.

These delicately formed hand-crank and motor-activated art installations blossom and grow perpetually.

Seattle architect Mike Eliason describes what he learned about their housing policies.

Even the fruits and vegetables are wrapped in plastic so that the sensors can read them, inculcating a culture of convenience and waste.

Strawless in Seattle is now officially enshrined into law.

Built for two bookstore owners, this elegant structure doubles as a place to read and for guests to stay in.

Or is it a missed opportunity?

Passive House multifamily buildings use almost no energy and don't cost much more than conventional buildings. They should be everywhere.

Old canvas bags have never looked so good. These antique Hungarian grain sacks date from 1910-1930. They are handwoven with flax linen, which is known for its durability and strength, and is said to be two to three times stronger than cotton. The

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

Not many details on this one, so I'm not sure if it's a genuine modification, a weird advertising campaign or even an art installation. Anything’s possible. I like to think though, that it's a Hungarian motorist who places sustainability as a higher

This week is all about climate change and its myriad ripple effects. Melting Arctic ice has opened up an international controversy over deep-sea land rights, and Russia will now make a bold move by planting its flag 14,000 feet below the surface. New

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

From Almada, Portugal, where residents will be able to swap recyclable materials for free rides on

Photo via StringBike The Bike, Unchained A group of designers in Hungary have done away with what has long been a staple of bicycle design, those oily old chains, with their creation, the StringBike. Instead of being propelled forward the traditional

It sounds like a plot-line from a bad 1950's sci-fi movie, but unfortunately there's nothing fiction about it. Several towns in western Hungary were flooded today with a toxic red sludge after the waste product from

Wastewater or sludge storage lagoons are designed, in part, based on statistical probability of annual precipitation and evaporation amounts. The data behind these estimates generally don't take into account contemporary

A state of emergency has been declared in Hungary where four people are dead, 120 injured and six missing as torrents of red toxic sludge, the byproduct of bauxite refining for aluminum, burst from a containment pond and poured through six villages in

Stand Up (On Your Bike) And Be Counted I've already written about Copenhagen's cyclist counter a while ago. I still think it's a great idea, not only to count cyclists, but as a subtle tool to show the strength of the local bike community and to add a

Hungary already has a ban on genetically modified crops, so this is a bit more complicated than it may seem at first. As PlanetSave reports Hungary has destroyed approximately 1000 acres of maize fields found to

They call it green. I call it too much.

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

London's international embassies are showing off their countries' design as part of the London Design Festival.

It's a good demonstration of how you don't need a lot of smart high tech to build a comfortable house.

Hold on to your pants as we show you how to solve the last mile problem.

A roaming freelance photographer and writer go on the road in this self-built live-work space on wheels.

What's the point of doing laundry with non-toxic soap if it still produces loads of un-recycled plastic waste?

Standard washing machines use a lot of water to get rid of a small amount of dirt. One startup is aiming to close that loop by reusing the wastewater.

TreeHuggers Katherine and Margaret talk laundry.

The electricity-free and low-water Drumi device could be one method of washing clothes without taking a huge toll on the environment.

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.

The next game-changing technology might not be in the form of an electric car with a longer range, or more efficient solar panels, but rather a better way to dry your clothes.

Green cleaning methods are the most effective way to get rid of stench.

The Care Label Project will add a label to thousands of clothes in hopes that people will adopt laundry habits that are better for both fabric and the Earth.

This all-natural DIY solution to dirty kicks went viral on Twitter ... for good reason!

These are some seriously innovative ways to hang-dry clothes.

The unanimous answer from garment makers to dermatologists to fashion-lovers is, "Yes!"

New legislation would require polyester clothing to have a label warning about shedding in the wash.

Proctor & Gamble blames it on Millennials not knowing how to do laundry, but it's more likely that they don't feel like paying to infuse their clothes with nasty chemicals.

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