Researchers found that a 10 percent increase in trees roughly matched a 12 percent decrease in crime in Baltimore.

Millions of Americans are applauding President Obama for naming five new National Monuments.

Not sure if you really want to live in a tiny house? This tiny home builder is making these cabins from salvaged materials, which visitors can test out at an eco-retreat in Maryland.

These lovingly photographed, colourful rowhouses are what's left after all the neigbouring ones have been demolished.

Thanks to an exception for "electric or non-fossil-fuel-burning vehicles". Maybe all other states could do that so that other EV makers don't have to face what Tesla is facing?

Veterinarians built this sweet mini-wheelchair for a turtle with a shattered shell.

New York's skyline is getting greener and a whole lot more productive too.

Green roofs, living walls, vertical farms are all part of a new living architecture.

One of the world's most famous architectural renderings turns into a building. Will it thrive?

Green roofs are wonderful things and lovely to look at, but there are other factors in play here.

It was designed to stay cool without air conditioning, and the green roof was part of the strategy.

It also pushes the limit of what we mean by historic preservation.

Jean-Philippe Pargade designs a school where the green roof IS the building, defining its whole look and feel

We are going to need a new term that binds them all together. A lecture in 20 slides.

"Less is more" is so over; These days the mantra is "too much is never enough."

It may be the most expensive and useless green roof ever built

Designer Matt Kovaleski integrates a solar power system into a picnic table setup for workers at Vice

And I am going to be positive, upbeat and happy about it, really.

Irish architects Heneghan Peng win the competition to house world's largest canoe collection

Located in Rotterdam, this Concept House features a huge rooftop garden, and uses natural heating and cooling techniques to keep maintenance costs down.

Really, this trend should be nipped in the bud.

This reconstruction scheme in China encourages resilience and self-sufficiency.

A tropical skyscraper by WOHA and Patricia Urquiola is wrapped in a vine-covered sunscreen.

There is not much that can go wrong in such a simple concept. That's really smart.

From the green roof down to the electric boat, there are so many interesting aspects of sustainable design.

This modern, Scandinavian take on the hostel includes private rooms and a jacuzzi in the old vault.

A traditional dwelling has been preserved by renovating it to include a new office, library, kitchen and guest room.

Diverging from the Sprinter van conversion trend, this man revamped an old life-saving vehicle into his own tiny home.

A fading fairytale village will become Switzerland's first 'scattered hotel' thanks to a foundation committed to saving it.

Blouin Tardif Architectes do a beautiful adaptive reuse and addition in Montreal.

This delightful apartment renovation in Spain hides a huge bathtub and other mysteries.

Vibrant tones liven up this redesign of a 1920s apartment in Stockholm, Sweden.

This former pigeon roost is transformed into a light-filled family home.

Is global cooperation the anecdote for global competition?

The Ellen MacArthur Foundation shows how thinking circular could change the way we live for the better.

As subsidy-free renewables proliferate, it will become harder to derail decarbonization.

Kids have been digging in salt mines for thousands of years.

Yes, slavery is still legal.

It turns out that helping mining regions move on is just good politics.

Main Street retail is vanishing under pressure from online shopping and rising rents. There are good reasons to save it.

School strikes, non-violent direct action, office sit-ins. It feels like something might be building.

New wind and solar will be cheaper than 96% of all existing coal by 2030.

The digital currency is in its death throes.

And we thought it was all about symbolism...

Pioneers are already making inroads into the market. But once economies of scale kick in...

The covering-yourself-with-blankets movement isn't nearly as cuddly as it seems.

It fosters connection and community, boosts happiness... and results in delicious baked goods.

We used to say this stuff should be banned because it was always installed badly. Has anything changed?

Finally, people are beginning to take this issue seriously.

But some people are beginning to take the issue seriously. Anthony Pak writes a good article about it for Canadian Architect.