This year, French tire giant Michelin (yes, the Michelin that made the tires on your car) held its 10th Challenge Bibendum event, this time in Rio de Janeiro. If you've never heard of this thing, don't kick yourself,

The rare metal is now worth US $1,700 an ounce.

Here's a one-stop green guide to traveling in San Jose, from hotels to a night on the town.

This analysis looking at the real footprint of e-readers slaps us with a shocking reality check.

Between the industrial waste, rats, and lead dust floating around, I wasn't sure if I should start an urban garden. The question took me to an unexpected place.

There are reasonable limits on what people can do on their properties. But this goes too far.

UC Berkeley’s new robot is the most vertically agile robot ever built – why is it so unnerving?

The HRP-5Ps were created by man. They evolved. There are many copies. And they have a plan.

Western Michigan University is installing solar-powered electric car charging. But it has to chop down nine trees to do it.

When the incumbents do everything in their power to keep you out of the market, rather than try to compete with you directly on the merit of their products, you know you're on to something.

Does the state of Michigan need a wolf hunt? Voters will get the chance to weigh in.

Proposed bill would make burning tires and other industrial solid waste count towards the state’s mandate of generating 10 percent of its energy from renewables.

This is England, the parks and gardens and countryside are supposed to be filled with golden daffodils by now. This is why we live here. But where are they? With this year's never ending winter and the long cold spell just

It's the first living painting in London's Trafalgar Square, and maybe the first anywhere. A Van Gogh picture has been turned into a green living vertical wall.

The university brings the outdoors in to help students relax and focus on studying.

Hinduism is the oldest

"The world is sweet and verdant

Rev. Richard Cizik and the nonprofit New Evangelical Partnership for the Common Good have released a video message to President Obama calling on him to do more to protect public lands from destruction by private industry.

SMUD demonstrate that all-electric living is actually cheaper than gas.

It's an interesting art installation that brings some attention to an electrifying man.

More on why the 626 environmental groups demanding action on climate change shouldn't be doctrinaire.

The Street View cameras now take you on extreme vertical tours alongside famous climbers.

The ring of giant Project Loon balloons will bring data service to people living below.

We're all friends here, right? So I can talk honestly?

But is it truly modular?

Alphabet, Google's parent company, has scrapped the release of the Project Ara phone.

The Canadian province is overhauling its recycling program, which would include holding producers accountable for their wasteful packaging designs.

The rollout starts in Seattle, then more broadly.

It was a while coming, but this could be a pretty big deal for your average buyer.

Following anti-Monsanto activism in other countries, Poland has announced plans to completely ban the growth of Monsanto’s genetically modified strain MON810.

A judge has ruled against Monsanto; company complains that it would drive some customers away. Unsealed documents add to drama.

EWG tested 28 brands of conventional oat-based cereals; they all had glyphosate residue, most of them above healthy standards

Or, once again, why electric cars [on their own] won't save us.

Energy Star is regarded by consumers as one of the most reliable raters of electronics and appliances in terms of knowing how much energy a device consumes. The organization continually raises the bar (little by little, but still raises) on energy

One of the big beefs with Energy Star for housing is that all it cared about was energy; beat the standard code by 15% and you got it. No matter that the best way to make a house efficient is to make it tight, leading to all kinds of air quality

Katherine Salant writes in the Washington Post:Can a big house be green? Yes, but a smaller house will always be greener because fewer resources were used in its construction and less energy is needed to heat and

From heat pumps to induction, it has never been easier to give up gas.

Baltimore residents, get ready to get in on the smart grid party. Baltimore Gas & Electric has just announced that it has filed paper with the Maryland Public Service

They are certainly more reflective, but that's not the only thing that matters.

Green roofs are wonderful things and lovely to look at, but there are other factors in play here.

Designboom shows another example of how green roofs are changing architecture.

It also pushes the limit of what we mean by historic preservation.

We are going to need a new term that binds them all together. A lecture in 20 slides.

"Less is more" is so over; These days the mantra is "too much is never enough."

It may be the most expensive and useless green roof ever built

Hawaiian engineers think that it can address many of the world's problems. Are they too ambitious?

It looks a lot better than the usual kind, cleans the air and absorbs noise.

But really, they should be dealing with the source of the problem.

From the green roof down to the electric boat, there are so many interesting aspects of sustainable design.

A vintage Airstream trailer gets a fresh and airy makeover with some eye-catching patterns.