I was walking through the rainforest and saw something odd.

Something my friend told me the other day made me rethink the plastic straw debate.

A new study suggests Zipcar users are less inclined to look after vehicles, and don't trust their fellow users. What does that mean for collaborative consumption?

Mark Boyle has literally lived without money, so he had more room than most to critique our economy. Now he's formulated a manifesto.

Patagonia's Worn Wear events, held in collaboration with sharing start up Yerdle, offer a different, more sustainable vision of Black Friday.

At first this smart lock seemed like gimmicky over-engineering. Then I got thinking about the possibilities.

Have you ever wondered what 'community living' really looks like, and why people do it?

A collective wardrobe spares resources, reduces clutter, and provides a steady stream of fabulous outfits. It's win-win all around.

This is probably the most interesting 3D printed house concept we have seen yet.

Getting people out of cars and rebuilding our main streets is not going to be easy, and cannot be oversimplified.

It talks a lot about cycling, but notes that we don't do nearly enough about walking.

That's an alternate name for Halloween, but let's not forget the rest of the year.

A new 'eco tax' will raise money for less polluting modes of transportation.

A British campaign is asking people to pledge not to fly for a year. Good luck trying that in North America.

It makes sense in Europe. Too bad North Americans have so few alternatives.

They incentivize air travel at a time when people should be flying less.

The number of people flying between German cities has dropped 12 percent.

We usually just talk about the plane, but it is a lot bigger than that.

The director of Celtic Connections questions the ethics of bringing in foreign artists to perform.

The French consider AC to be unhealthy. Will they change their minds in the face of a changing climate?

Most glass buildings are a problem, but just banning them is the wrong solution.

CEO Rose Marcario says the move will show solidarity for the young people who are striking for climate action.

All 250 stores, production facilities, headquarter, and e-commerce in North America will be closed for a day.

Some people have to work, but they can still show solidarity.

Collins dictionary lexicographers observed a 100-fold increase in its usage in 2019.

Shipping Containers are used as giant blocks to build a giant steel party room

Made from TigerBamboo and hand sculpted flax fiber composite joints, the bikes weigh around 1.75 kg, and, according to the designers, “have a ride quality similar to high end steel, but with better vibration absorption”. And they look funky!

Why hide your bike away when you can put it on display?

From adorable baby sea turtles to lamps made of cow dung and 600-mile bike trips, it's been a wild ride.

Submit your witty, artful, or entertaining short film for the 2014 VELOBerlin Film Award.

Taking the category and best in show prizes will help Efficient City Farming get the funding to grow!

Did your fear of stains stop you from going to school or work? Probably not. But this company is aiming to bring menstrual cups to African schoolgirls who miss school because they have their period and cannot afford disposables.

The public has cast their votes, and if the winner is any indication, there are some angry bikers tired of fighting the battle for clean transportation.

As its reputation grows, the VeloBerlin film awards attract more talent

It can take hours before test results clue authorities about hazards in water supplies. The AquaBioTox uses biological sensors for immediate feedback.

You thought disco was dead? Not with these old payphone booths, now transformed into ultra-exclusive, tiny dance clubs, complete with the disco ball.

And they figure out where to put it, because "future architecture means city-hacking."

Innovation and local products featured prominently at the bike show

It is a strange and wonderful experience where you don't know what's around the corner.

Made out of an old grain silo, this renovated micro-home is bursting with delightful creativity.

Mayor says "Such tank-like SUVs do not belong in the city"

Researchers concluded that the spill probably doesn't pose a significant environmental risk, but the ash contained heavy metals like arsenic, lead and mercury.

“The dangerous conditions behind the Kingston disaster were not isolated."

A town is prevented from creating regulations stricter than the state's rules, despite residents' concerns about groundwater contamination.

State regulators have found boron, arsenic, selenium and other toxic metals near 14 power plants, all in excess of state health standards.

Filipino activists had been charged with trespassing in December 2009 to document toxic coal ash.

The green activist group's stunt seeks to draw attention to the devastation wrought by coal.

Things of Intrinsic Worth is a feature-length documentary which focuses on the ways coal mining is harming the livelihoods of Montana ranchers.

New report shows shocking amounts of coal pollution in U.S. waterways.

The coal industry continues to fight for profits over people, even though coal ash is extremely toxic.