There was a time when local currencies were usable only at food co-ops and yoga studios. When a city mayor elects to take his entire salary in local notes, you know things are changing.

"Most people are already operating ‘off grid’ in different ways to varying degrees, but the vast majority don’t feel the need to make a big lifestyle song and dance about it."

"It's an emergency," say council members. "So let's act like it."

This week former Vice-President Al Gore made a stop by Atlanta last week to talk about...well, climate change. But while he was there, he took the time out to talk to one of the NFLs most green athletes, Atlanta Falcons fullback Ovie Mughelli. Still

Yesterday I wrote about a mom who was convicted of vehicular homicide after her son was killed by a drunk hit-and-run, because she crossed the street from a bus stop without walking almost half a mile to the traffic light. Today Walkscore has released

There is something contradictory about building a Green Porsche Headquarters at an Aeropolis, but whatever.

It's summertime, and the living is easy, and we are talking about air conditioning.

St. Augustine said "Solvitur Ambulando": It is solved by walking. So does Tom Vanderbilt in this great series in Slate.

Planner Paul Knight shows how to do the math and figure out where to go for maximum candy

One might think that promoting walking as an alternative to driving might be good for cities clogged with cars full of overweight people.

If you thought the top market for electric car growth was somewhere in California, you'd be right many months out of the year, but not the 4th quarter of 2013.

This loft-less tiny home makes quite a statement, both inside and out.

It is appalling that in much of America, they are considered a frill.

It is the first big city in the South to commit to being fully renewable energy powered.

It was a sad day last year when intense lobbying efforts in Congress won out, and a ban on BPA in children's products was blocked. But it seems that China and Malaysia have beaten us to the punch. According to Green Biz, China and

Just when I thought it would be fine to cook with canned tomato sauce - bis-Phenol A recently having been granted toxicology probation - emerges the possibility that BPA can make you obese. Ohhh wait - not

Where does the FDA stand on a BPA ban?

The Substitution Support Portal SUBSPORT launched this week, intending to give business improved tools for substituting hazardous chemicals with safer substitutes.

It seems that the only people who benefit from this rule change are the members of the American Chemistry Council who make BPA.

A new study from the University of Illinois shows how chemical exposure early in life can alter stem cells and cause disease.

Researchers have found that lignin, a compound found in wood, could replace BPA in plastics.

A new report shines the light on a dirty little 'secret' of canned goods, which has little to do with the food itself, and everything to do with the coating in the can.

Nearly a year ago a "Great Green Wall" of trees was proposed to run across the entire southern border of the Sahara desert in an attempt to stop expanding desertification. At the TED Global conference in Oxford, England,

At first it sounds like any other reality show: "Candidates will be put through a series of tough physical

Locals in one region of the Australian Outback have been terrorized of late by a roaming band of feral camels. Drought conditions and a recent heat wave are being blamed for driving some 6,000 camels into residential areas near

It's been a couple of years since the still-planned and so-called Great Green Wall of Africa graced the pages of TreeHugger, so here's a quick update and overview: As the BBC reports, African leaders are meeting in Chad to further push the

Deserts are hot, dry, and unforgiving -- which makes them difficult environments for most creatures to survive in. But desert residents who have adapted to the temperatures -- by learning to survive without water, developing their own cooling systems, and

The literature on soil erosion contains countless references to the "loss of protective vegetation." Over the last half-century, clearcutting, overgrazing, and overplowing have removed so much of that protective cover

Australia has a feral camel problem. The Australian Feral Camel Management Project estimates that 1 million of rogue dromedaries roam outback Australia, annually causing over $14 million AUD worth of damage to infrastructure and

A drive-in movie theater in the wilderness and an urban rooftop are just a few of the innovative spots from which stylish trailer hotels are popping up.

Studies show that humans and kangaroos may have co-evolved to be mutually beneficial to one another.

Imagine millions of these slithering out from the mud? The eggs of this alien desert crustacean remain dormant for years, waiting for a bout of rain to hatch.

What does it feel like to be an arch? Very different from how it feels like to be a cantilever.

There is so much that they can't burn it here, so they compress it, liquify it, and ship it. That's not working out too well either.

So many flavors and colors of gas these days. They are all problematic.

If a massive water footprint, air pollution, contaminated drinking water, earthquakes, and general environmental degradation weren't bad enough...r

It's killing everything, including renewable energy.

Some 200 bald eagles are scavenging the goods at Cedar Hills Regional Landfill and dumping the leftovers in suburban backyards.

Our photo of the day comes from Atascadero, California.

Our photo of the day shows how to make an awkward bill look like a thing of grace.

Discovered in a cave, the surprising find reveals a fast and giant bird that weighed almost as much as a polar bear.

Here's what to know about America's favorite bird of prey.

The reward for information leading to an arrest has climbed to $12,000.

Our photo of the day proves that size doesn't matter.

The Carolina parakeet was the only parrot species native to the US; by 1918, we had killed them all. New evidence explains their demise.

Few other animals are known to be intrinsically motivated to assist others in need.

Some moth species have evolved noise-cancelling abilities that are more efficient than today's sound engineering technology.

A Brooklyn dinner party turns "dumpster diving" into an informative meal.

It's the usual fight between the contractor who wants to be paid for cost overruns and the developer who claims it's all a fixed price contract.

Featuring eye-catching geometries, local and non-toxic materials, these unique furniture pieces meld a medley of traditional weaving and woodworking techniques.