Today, the United Nations climate talks reached an agreement, and committed to fighting devastating levels of climate change.

Simple but striking, this small treehouse retreat was built by hand and furnished with repurposed flea market finds.

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

Innovation may be a fundamental part of

" It is an idea upon which our planet’s future depends."

The US Consumer Products Safety Commission (CPSC), under pressure to lessen childhood exposure to lead in toys and clothing, has set a deadline of early February 2009. That's

It's reminiscent of some other crackpot ideas from the seventies.

The future is mobile as businesses dematerialize and hit the road

These flowery sculptures seem to grow and flourish, out of repurposed dead animal skulls.

It's one thing to design to the Passivhaus standard; it is another thing altogether to prove it.

In case you missed it (and you certainly may have in the midst of other current world affairs) it's Hemp History Week. The second annual one in fact. I imagine most TreeHugger readers don't need much convincing that

A brush with death helped this family focus on the most important things in life, prompting them to convert a bus into a DIY motorhome.

A Today Show bit today is perhaps the grossest example yet.

This is an urban design issue, a car design issue, and a demographics issue. Distracted walking is a rounding error.

Most of the english speaking world has the day off today, in what started as a tradition of helping and sharing, and ended up at the mall.

It learns your usage patterns but can do a lot more.

Who says you have to wait till New Year's to make a fresh start? No time's better than back-to-school season.

No high-tech bells and whistles here, but tried-and-true strategies are used in this renovation to make a small space feel much bigger.

TreeHugger asked Andrew Sharpless, CEO for the Oceana ocean protection organization, why we really personally care about the health and fate of the world's big water bodies. Many of us, after all, live far from

Margaret Wente trots out every 20-year-old trope spouted by tired old discredited climate change deniers.

125 US cities, 9 states, 902 businesses, and 183 schools so far have all signed a declaration promising to honor the Paris Climate Agreement.

Many feared the worst, and it seems like that's what we got.

It's déjà vu all over again, with the old guard trying to stop the newcomers...

It's déjà vu all over again, again! Auto dealers have been fighting Tesla Motors on multiple fronts for a while now, trying to either force them to do business with the traditional sales model, or be prohibited from selling in certain states.

Nic Darling is part of Postgreen Homes, builder of the 100K house and others that I have raved about; Postgreen is a different kind of developer, working in gritty urban parts of Philadelphia, doing smaller, more affordable

Are solar-powered trash cans a fuel-saving, money-saving way to keep the streets clean? Or are they worse than regular trash cans?

In Toronto and New York, Vision Zero is just talk. It's time for action.

Drivers used to get away with murder; new legislation is much stronger.

Biologists believe that oil companies are to blame for the recent dolphin deaths.

Hundreds of dolphins and pelicans have been found dead on beaches in Peru since February, prompting the government to issue a public health warning.

Sure, we'll be using oil for a while. But where, exactly, is demand growth going to come from?

A look at our favorite posts from our sister site.

And a really nice solar decathlon winner.

Between 2002 and 2015, these 'streamer lines' helped reduce seabird by-catch in Alaskan fisheries by 78%.

We've written about e-paper here and while the idea seems nifty, it's hard not to think that improving online readers might be the best option rather than adding another electronic gadget to the overladen waste stream. But in a new study from the

A shocking 17 times more people die from cold than heat each year, according to Lancet study.

In the northeastern reaches of Turkey, outside the city of Kars, I came across one of the most bucolic scenes I'd ever laid eyes on in the

The Middle East environmental site Green Prophet names 11 eco-heroes for 2011 who are working -- sometimes at great personal risk -- to make the region a cleaner, healthier place.

Greenpeace urges outdoor lovers to reject the chemicals used in popular weather-resistant fabrics.

Neti pots are useful for flushing out clogged sinuses, but it's important to do it the right way.

It seemed a bit smaller and emptier this year, much like the green movement in general.

Cargill Meat is recalling 132,600 pounds of beef products nationwide that may be contaminated with E. coli.

Using mushrooms to challenge our unhealthy obsession with "body preservation," artist Jae Rhim Lee fabricates a suit that will remediate environmental toxins from dead bodies.

Thought experiments worked for Einstein. Can they help protect the environment too?

Perhaps AVs should have their own lower speed limits until they figure this all out.

An ethanol production mandate could be in conflict with efforts to reduce the Gulf Coast dead zone.

Why own a fondue pot when you can borrow one?

Sharing resources and renting just what you need is green, but not much of a business model.

There are a lot of good reasons to get rid of that old plug.

"If a touchscreen must be used, it should be embedded alongside a set of fixed, physical buttons that support muscle memory and single actions."