The technology could lead to cheaper hydrogen cars in the future.

There's always clung to the Tetra Pak a bit of uncertainty regarding its environmental credibility: is it or isn't it green? Tetra Pak recycling rates are lousy, but in at least one life cycle analysis it came out ahead of glass and PET plastic in energy

We've written about e-paper here and while the idea seems nifty, it's hard not to think that improving online readers might be the best option rather than adding another electronic gadget to the overladen waste stream. But in a new study from the

The numbers are in for the World Happiness Report 2017; who wins this year's crown of contentment? Think of it as a love letter to Scandinavia.

For three days this summer, a local host could show you why their country consistently ranks among the happiest in the world.

Another large-sized solar charger and battery system is about to hit the market, as an off-grid solar generator in a briefcase.

The Jenni solar charger and battery pack aims to make it easy to begin going solar at home, starting with your portable electronics

Everything you need to know about building a proper blanket fort.

When even so-called experts don't know the difference, you must admit we have a problem here.

Shortlisted for the 2013 Aga Khan Awards, this elegant building makes good use of wasted stone generated from a town's large stonecutting industry.

Kayak not included, but everything else a dorm room needs is.

With the winter solstice association with death and rebirth – these historic events of December 21st take on new resonance.

TreeHugger has been a fan of photographer Ed Burtynsky's work for a long time. We first spotted it here and have enjoyed watching him branch out into film with "Manufactured Landscapes", which was recently released in the US and the UK after debuting

Tuna producers are notorious for unethical labor and unsustainable fishing. It's time to learn more and take action.

The organization scored the biggest gadget makers on their products' environmental records.

Why would an engineer at Apple quit his job to design a product to help gardeners propagate plants?

You just have to look at the parking ratios to know they are environmental disaster areas.

Think bike lanes cost too much? Let's put it into a little perspective.

This looks like a long-needed solution to one of the key barriers to electric vehicle adoption, and I can hardly contain my excitement.

San Francisco is admirably progressive when it comes to reducing food waste and keeping food local and seasonal.

A custom-made addition to this small condo packs in extra features and functionality, creating more spaces in one.

Science has shown over and over again that bar soap does not transmit infection. It is a powerful, plastic-free, and cheap disease-fighting tool.

Traveling exhibit in Turkey prompts audiences to put on their 'climate glasses' and see how floods, fires, and drought in the country are all connected.

An exhibit about the pioneering mid-century designers illustrates the innovative ideas that inspired their work.

Don't let artist Agustina Woodgate -- who says stuffing is "like looking into the soul" -- near your favourite stuffed teddy bear.

Celebrated English painter David Hockney has turned to the iPad as his canvas -- embracing the latest technology despite his age.

Bangkok-based artist Nino Sarabutra investigates what really makes people happy, and how much money is needed to live a good life.

The sound of gunshots has been transformed into the sound of music in Mexico's Ciudad Juárez, where artist Pedro Reyes turned 6,700 confiscated weapons into a complete orchestra of fully playable musical instruments.

It's the most prestigious photography prize (and best paid) and here's this year's winner.

Klein, author of 'This Changes Everything,' launched the Leap Manifesto at the Toronto International Film Festival. Read and sign it here to join the call for a more sustainable and equitable future.

So much of what he wrote has relevance today.

Why do we always think other animals are so simple?

One smartphone user makes a case for using old-fashioned items like alarm clocks and newspapers.

They are always fun to look at but do they make sense?

These impressive feats of architecture and engineering are one of India's traditional methods of water conservation. Now threatened by disuse and a growing water crisis, one photojournalist is documenting them before they are forgotten.

A dramatic act of protest reminds companies to take responsibility for the wasteful packaging they produce.

Report also provides a blueprint for how to overhaul the food system to improve wellbeing all around.

Also spotted at the recent edition of the Feria Puro Diseno, Buenos Aires biggest design show, this simple yet interesting wooden home accessory goes in line with some of our favorite concepts: multi-purpose objects and small

Designer Paulo Alves took down all walls and created multi-function furniture for his small place.

Sure, a bicycle can replace your car -- but as Frank Zappa demonstrates, it could replace your drum-set, too.

This automated smart home system for small apartments takes the effort out of having to transform your all-in-one furniture unit by hand.

These transforming shoes can go from flat to a stylish stiletto within seconds.

Inspired by theater set design, this versatile volume holds storage and other hidden furniture.

Also we've got electric motorcycles and hot rocks.

A new platform aims to remove the barriers between would-be investors and solar developers, increasing the adoption of renewables in the process.

The longer we wait, the more expensive (and dangerous) it gets.

Nippon Life Insurance will become first major Japanese institutional investor to ditch coal.

Ready to share kilowatts? Facebook launched its social energy app today that will enable users to share and compare their home energy consumption.

A new app from BBC allows you to explore content from their great nature documentaries.

We all know that America and the world are getting fatter, but I didn't know that they are even now making special toilets to deal with the problem. In fact it is, um, an expanding market; The Zurn Bariatric wall hung flush