Great cities know the future is renewable.

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.

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.

The leader of the Catholic Church used his strongest language yet to call for 'decisive action, here and now.'

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

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

A representative of the industry says I shouldn't be picking on fiber glass. He's right.

Living some 6,000 miles away from the Gulf of Mexico, I'm a bit embarrassed to admit that the oil spill often seems like an abstraction to me. A big, big abstraction, but still.

Kate Stohr, the co-founder of Architecture for Humanity, dropped me a note suggesting that I have a look at their Year in Review of their work in Haiti. I did, and couldn't help but come to the conclusion that it was really boring.. I mean really,

The thin layer of topsoil that covers much of the earth's land surface is the foundation of civilization. As long as soil erosion on cropland does not exceed new soil formation, all is well. But once it does,

U.S. hospitals waste thousands of tons of medical supplies every day. DOC2DOCK collects and redistributes these supplies to match the specific needs of hospitals in the developing world.

Three years after a catastrophic earthquake in Haiti, health care workers are still finding it difficult to get medical supplies, but an aid group is putting 3D printing to work to make some of the needed items.

The update to the "Red List" illustrates the worldwide crises facing many species around the globe in the face of habitat loss and degradation.

We want to extend National Talk Like A Pirate Day just a few more days, especially since it is helping to spread the word about clean sailing and boating. The Sierra Club has put together a fun set of questions to not only get you in the

Number of storms predicted per year during the period 1854 -- 2006 versus numbers actually observed for the Atlantic (filled diamonds). The model predictions (grey curve) have been normalized to the data. A quadratic fit to the model is shown for

Get simple but powerful personal actions delivered to your inbox every 3 days; 30 actions in all – are you up to the challenge?

The palm oil situation is bad, but some people argue that it would be worse if replaced by other vegetable oils.

PNC Financial Services Group, based in Pittsburgh PA, has built a plant-covered exterior wall, "to make its headquarters building more energy-efficient." Looking like one of those huge billboards seen along an

There are 446 Bridges, Most with Pedestrian Sidewalks! This great video by our friend Clarence over at StreetFilms gives an excellent overview of Pittsburgh's bike culture and infrastructure. Having never been, and because Pittsburgh isn't as well

Ambitious thieves spend a month torching apart a Pennsylvania bridge

The queen led her minions to the engine of a Delta airplane, delaying the flight until the protected bees could be professionally removed

The case is actually moving forward.

A growing number of cities are getting serious about tackling the climate emergency.

It's a number that's been thrown around a lot recently. There's a danger it will be misunderstood.

Climate action is about to get radical.

He's not exactly treating it like a crisis. But at least he's doing something...

It's a more environmentally-friendly way to dispose of a body than burning or burying.

We are never going to switch to electric cars in time to make a difference. That's why we have to get out of our cars and walk.

Using officially documented research and color-it-yourself data visualizations, this project aims to convey climate change data in an engaging way.

Carbon sequestration, the technology taking carbon dioxide out of fossil fuel emissions, just got a boost

Our bet: no.

Seriously ...

We’ve covered numerous tote bags here on TreeHugger, but there are so many cool styles out there we always find the need to post info about new ones that we spot. This one, found at Global Exchange (who we’ve mentioned before) is handcrafted in

You can't help but notice the street kids in Phnom Penh, Cambodia. Some of them, darting through the heavy traffic of tuk-tuks and motos on their hunt for crisp dollar bills, are so young they have yet to learn to talk. Other than scooping them off

We love products that support or revive traditional crafts. Check out, for ex ample, the work of Kallari, fair trade suppliers of traditional Amazonian baskets, which we reported on here. Now we've come across another cool basket supplier, this time

Karaoke video explaining not to drink water from wells painted red as they contain high levels of arsenic (YouTube via RDI-Cambodia) For this writer, karaoke has long been thought as an activity to be endured rather than enjoyed (and I am sure I am not

In 2007, villagers captured a mysterious young woman in a remote region of Cambodia who, by all accounts, was completely isolated from human society, a feral child living in the forests. News of her discovery

They may sound progressively eco-friendly, but a new Greenpeace report explains why they're not.

It's happening all over, and wood construction can make it even easier and faster.

Architects ignore it. "Heads of sustainability" ignore it. Critics have ignored it, but this may be changing.

It's a moving target and, like TreeHugger hero Chris Magwood, we are all learning on the job.

Dan Rockhill and his students keep pushing the building envelope.

"This is our last chance to avert a climate disaster. We must act now."

Studies show that taller buildings are simply less efficient, and don't even give you any more useable area. Why bother?

The KISS principle applies to everything, including building design.