Celebrity ambassadors call for support for the UN’s World Environment Day.

The actor known for The Vampire Diaries and Lost joined today's World Environment Day celebrations in Barbados.

The host country of the United Nations World Environment day is working to protect its natural resources and adapt to climate change.

The soccer star arrived in an electric retro-fit Fiat Panda and attended a cooking demonstration.

It's time for action on the federal level.

Residents of the main avocado-producing area say they're forced to drink contaminated water delivered by truck because rivers and aquifers are being drained by avocado agribusiness.

Hydroponics systems, electricity-free appliances and more caught your attention in 2015.

Using fresh organic ginger and locally grown oranges, the eco-friendly Medlock Ames has created a drink that is complex, fresh and tangy.

Since July, floods have ravaged Thailand, causing $3 billion in damage and killing nearly 300 people. But as the waters approach the capital city, Prime Minister Yingluck Shinawatra says he is confident

A new video from the Ecologist Film Unit shows how baby elephants are being smuggled into Thailand from Burma for tourism.

Using local materials, this impressive bamboo structure features a microcosm of imaginative spaces designed for a range of playful activities.

Peter Root and Mary Thompson, both only 34 years old, were on an epic bike trip around the world. They were killed in a road accident last Wednesday in Chachoengsao Province, Thailand, near Bangkok.

Whether they are are autonomous, self-driving or "shared" like Uber and Lyft, they are still congestion.

The fire department had received 31,801 calls this year for help in removing snakes, three times as many as in 2012.

"The time for complacency has passed. We must treat this crisis as if our lives, and the lives of our friends, families, and neighbors, depend on it. "

Don't wait for a big exotic trip to get outdoors. How about squeezing it in between 5 pm and 9 am?

Design firm Castor once again gives new life to old dead things.

There is a lot of buzz about it, but what you really want is a window.

Circadian rhythm lighting products won't fix body clock problems.

The World Green Building Council has some tips about ventilation, insulation and lighting.

Seventy-two days after setting out from Istanbul, champion distance runner Kevin Lin Yi Jie and a small team of other athletes have covered 4,434 kilometers of their 10,00-kilometer goal: Running the

A small apartment gets enlarged by knocking some walls down and adding a multi-functional staircase and mini-loft.

Australians may be world leaders in terms of greenhouse gas emissions, but with their new government signing Kyoto as one of its first acts in power, it seems change may well be in the air. So, is Australia about to go green in a big way? UK-based

The Resilient Design Institute suggests we should all have six weeks of food in our homes. Too much or too little?

I think open kitchens are greener and more efficient, but others like a separation.

Our photo of the day comes from the 15th oldest U.S. national park.

Good news: The ban on CFC-based asthma inhalers is rapidly approaching. Inhalers are going green and by December 31, all inhalers must be powered by hydrofluoroalkane (HFA) instead of the ozone-harming chlorofluorocarbons (CFCs).

Hopefully someday we can say the same thing about an effective effort to combat greenhouse gas emissions.

Geoengineering can be more than doing stuff to the environment. We could try leaving it alone.

This modern laneway house is now home to a client who wants to look after her aging parents.

The Greatest Outdoor Gear How do you make the greatest outdoor gear? We went to Empire Canvas Works' Kevin Kinney to find out. If the quality of Kevin's work is any indication, the recipe is clear. Start with a passion seeded by stitching together a

The Heath Ledger-directed Modest Mouse video for "King Rat," released Tuesday, follows the animated adventures of a ship helmed by whales on the hunt for humans--harpoons and all.Ledger developed the video to draw attention to

For most people, there's something particularly sad and gory about seeing wildlife killed on the side of the road--but for one British clothing designer, such critter-carnage is fodder for fashion. In an upcoming fashion show,

One British designer's fashionable collection of hats, coats and jewelry is made using all parts of animals that have died naturally or accidentally on the road.

An ad by the European Fur Breeders' Association will not be allowed to run again after the advertising watchdog, ASA, ruled it to be misleading.

Wind turbines, solar cells, wave power. If you think these are newfangled technologies, think again. They were fangled long ago, and their story is the meat of Alexis Madrigal's new book, Powering the Dream. Madrigal (a senior editor at The Atlantic and

Late last month, when officer Shelley Hammonds of the Tennessee Wildlife Resources Agency received word of an animal in distress, it might have sounded like a routine rescue operation. Witnesses described

Do you plan it where there is lots of room, or do you put it where there is good transit accessibility?

A fisherman who had criticized illegal fishing practices loses an eye in an armed attack as diminishing fish stocks and increased debts create a volatile atmosphere.

Citizen persistence at measuring and publicizing pollution levels results in a major turnaround by Beijing.

This year's nominees include amazing concept gadgets, biomimicry in robotics, crowd-sourced projects and more. Vote for your favorites here.

More bikers take to Twitter to mock bike haters.

There are a number of reasons why this is an excellent idea.

The billion-dollar app specializes in sharing digital photos, but tugging along behind it is a growing pile of material stuff.

When John Doerr talks, people listen. As one of Silicon Valley's most prolific venture capitalists, having earned upwards of $1 billion betting on tech heavyweights like Amazon, Compaq and Google, investors and businessmen paid close attention when he

TreeHugger Founder Graham Hill stopped by the TED Conference recently to outline his LifeEdited project—and explain why a keen ability to edit will be the most important skill of the next century.

The winner will have the opportunity to speak at TEDxManhattan 2014.

For some reason, they think that this is progress.

Ingvar Kamprad changed the industry, making good design affordable, accessible and desirable.

Now that's an infrastructure project!