It's time to take back the streets from all the cars and make room for alternative modes of transportation.

By next year at this time, all straws in SF will be made from paper, bamboo, wood, metal or fiber.

The Outdoor Care Retreats let nature give a valuable boost in creating a respite from the sterile and stringent hospital environment.

The touring museum show 'Climate Change: The Threat to Life and A New Energy Future,' which wraps up its Istanbul run this weekend, is professionally put-together and well-intentioned, but flawed.

"Brains: The Mind as Matter" at the Wellcome Collection features 150 objects including real brains, anatomical models and artworks, and more.

Pop-up gardens, urban farms, guerrilla bike lanes, examples of crowdsourced city planning, and other urban interventions will be the focus of the official U.S. Pavilion at the world's most prestigious architecture event.

The U.S. Pavilion is spotlighting grassroots efforts to make cities and neighborhoods greener, safer, and happier places to live.

Sixty-five porters and 75 yaks labored over two years to bring more than eight tons of trash down from the slopes of Mount Everest -- and into the hands of local artists.

Edward Burtynsky, Jennifer Baichwal, and Nicholas de Pencier

Changes closer to home would be nice too.

So much of what he wrote has relevance today.

Those crazy radicals at 475 demand High Performance Building across the Dominion.

E-bikers use their bikes more, go longer distances, and often substitute it for driving or transit.

The happy country that set a Guinness record for planting 49,672 trees in just one hour welcomes the birth of a new prince by more than doubling that planting.

But what will the handrail police say?

Is this carrot-based animal feed additive something worth crowing about?

If these drugs have a fattening effect on livestock animals, it's logical that they would do the same for humans.

The fast food chain has taken last year's promise to eliminate antibiotics from pizza a step further.

Yesterday TreeHugger asked whether the Monobloc was the most famous plastic chair in the world. Now, sadly, the death has been announced of the creator of another very famous plastic chair.

Sure, a bicycle can replace your car -- but as Frank Zappa demonstrates, it could replace your drum-set, too.

Forbes reports on how General Motors is recycling or reusing "90 percent of its manufacturing waste."

Inspired by theater set design, this versatile volume holds storage and other hidden furniture.

But maybe he should.

With a few tips from Grandma thrown in.

Tweet tweet. Collect enough virtual birds and you could make it to the Galapagos.

Why did Facebook pay $1 billion for Instagram and what can the environmental movement learn from this? It's all about emotion.

This Australian design takes the work out of parking bikes.

These specimens of the fungi world are both beautiful and strange.

Not in the ocean. Below it.

An existing storage shed in the forest is transformed into a small modern home with a striking form.

If You're in San Diego this Weekend... You love bikes? You really love bikes and you're near San Diego? Well then, you've got to check out the 2009 San Diego Custom Bicycle Show! It takes place this weekend on April 3rd, 4th and 5th. Of course, best not

More and more, urban biking has become one of the best ways to see a lot of a city in a short span of time, so it's a no-brainer that more hotels are offering free bikes along with the price of the room. In

This renovated bus is a mobile coworking space that brings location-independent professionals out into the great outdoors, combining work with a hike, a bike trip or a surf ride on the waves.

When I wonder what words should replace Emma Lazarus's obsolete phrase on the Statue of Liberty - "give me your tired, your poor, your huddled masses yearning to be free" I think of Frank Luntz's dictum learned from Joe Romm: "There is a simple rule,

Researchers are poring over an important medieval medical text with 360 recipes, many of which might have successfully fought infection long before modern science.

Pinpointing the sources of myths that threaten the health of children could help get the truth out to where it is needed

Seedo, creators of automated consumer grow labs, will shortly plant a seed in the U.S. medical marijuana market.

Lead? Aerobic bacteria? Misleading labels? Consumer Reports tested popular brands of the widely used supplements; here's what they found.

Sometimes the most boring vegetables are the most versatile.

Think we are cutting back? They are just getting started, and we are going to be buried in the stuff.

Ladies and gentlemen, we've finally reached peak TreeHugger.

Removal of the 118-foot-high dam in France will free the Sélune River, bringing wildlife back to the waterway and the bay of Mont-Saint-Michel.

A new study looks at how AVs are part of a much bigger picture of how we get around.

The car changed the design of our houses; the AV will change our houses and the way we live.

They want to build beacons into bikes. Will implants in pedestrians be next?

We are wasting too much time, energy and money on autonomous vehicles. We know what to do and it's not AVs.

Though it was announced over two weeks ago, perhaps because of Exxon's backing of Synthetic Genomics, Dow Chemical's backing of Algenol Biofuels is getting a bit more play. Together they will develop a pilot-scale algae

If there's a holy grail of liquid renewable fuels it might look something like this: High yield per acre, doesn't negatively impact water supplies, doesn't compete with food crops, and is cost-competitive with fossil

It's been a while since a good poo-power story has come down the pipe, but here's an interesting one: Massachusetts-based biofuels company Qteros and wastewater recyclers Applied Clean Tech have announced that they

Can we just all put palm oil biodiesel produced on deforested peatlands to rest already: A new report from the United Nations Environment Programme shows that biodiesel production under these