50 years ago today, the Apollo 8 astronauts took the photo that some say inspired the environmental movement.

Lake Michigan froze over during the polar vortex, so I walked on water.

Could sharing more be central to achieving the Right's biggest dream?

The sharing economy is getting more and more attention, but laws drawn up for traditional business don't always adapt well to informal sharing or collaborative consumption.

The sharing economy is built more on convenience and the desire to save money than a mission to save the world. But does that matter?

Zipcar has made car sharing cool, but it doesn't always need a fancy business model. Sometimes you can just share with your neighbor.

With all the talk of the "sharing economy", are we in danger of losing sight of the bigger picture? Sharing is caring after all.

The sharing economy is built on reputation. So is online social gaming. Now the two are coming together.

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?

Could "sharespray" transform our entire future? A light hearted take on the new sharing economy.

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

Global Sharing Day is coming up. Share your garden and knowledge to create a healthy, sustainable community.

Basalt Regional Library in Colorado is combining the best of both a traditional public library and the ever more popular seed library.

As Seattle welcomes yet another tool library, there are bigger picture lessons to be learned about the value of sharing.

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.

By encouraging neighbors to share skills and cooperate, time banks can build strong communities and a vibrant informal economy.

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.

Studies prove these myths aren't true but nobody is listening.

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

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.

It helps you determine what it will cost to heat, and what you should do to seal it up.

Cars spit out tons of pollution. Luckily there are many ways to reduce your emissions - we've summarized the top tips for you.

The world is getting hotter. But if we need AC, we have to use it sparingly.

Even Amnesty International is weighing in about the way the Alberta government is going after environmentalists.

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

The NYC Department of Education has promised no repercussions for skipping class on September 20.

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.

We are out supporting the kids today; back to our regularly scheduled programming tomorrow.

The 16-year-old climate activist holds nothing back when addressing the UN Climate Action Summit – this speech shows why she is having such an impact.

More on why less is more.

The teenage climate activist said the planet "doesn't need any more awards."

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

The public wants to see activists practicing what they preach.

In a word, yes. We don't have to buy what they're selling.

Beware of the gilets jaunes, says Philip Stephens.

It's no longer safe for groups of people to gather in public places.

A building that once housed a Jewish girls' school, shut down by the Nazis, is now home to a fashionable restaurant.

Robert Llewellyn explores Berlin's high tech systems for car sharing in an urban environment. He thinks he may have seen the future of mobility.

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.

In spite of snow and freezing winds, the bicycle season officially opens and we check out the trends and innovations for 2013.