Doing street improvements for pedestrians and cyclists increases sales by 30 percent. So why aren't cities doing it?

A study shows that many want to make better decisions, but don't know how.

You really don't need all those big appliances.

The ocean is full of uncharted territory -- and of breathtaking natural wonders that look like they'd be more at home on Pandora than in the blue depths just off the beach where you spent your summer vacation. These stunning underwater plants offer an

This looks like lungs, sort of, but it's really made out of meadow flowers.

You won't find Lobster Boy in Hartford, Connecticut. Or Salt Lake City, Utah, or Denver, Colorado, for that matter. Those are the top three most "Suntelligent" big cities in the U.S., according to a survey by the American

I'll admit it, I'm a sucker for those little hotel soaps and shampoos and lotions. I rarely go home from a hotel stay without a handful of them stuffed in my bag. But they are

A community garden in Atlanta proviudes refugees from around the Globe a space to grow food, share their culture and to build community as a result.

At first it sounds like any other reality show: "Candidates will be put through a series of tough physical

From Wangaari Maathai's Billion Tree campaign to lush permaculture landscapes in Jordan, we've seen how individuals and communities can reverse desertification and bring life back to arid soils. Now a new dramatized documentary

Could strategically-placed rock walls help to re-green the desert?

Thanks to COVID-19, a lot more than previously thought.

Our photo of the day comes from Cape San Blas, Florida.

A Brooklyn dinner party turns "dumpster diving" into an informative meal.

Although the term “Passive House” might seem to refer to single family homes, these concepts can be applied to all kinds of buildings.

Fed up with the disposable culture we all live in, two women from Portland, Oregon, founded a low-waste company to help the entire city cut back on plastic.

It turns out that some parents are less than thrilled.

School closures mean kids will be spending a lot more time at home. Here's some advice on how to cope.

It's an old-fashioned skill, but it's still relevant in today's world.

Remember pallets? Remember infographics? We have both in one post!

An exhibition of their work is at the Cooper Hewitt in New York.

"Eat organic," you hear, over and over again. But it can be tough to find organic versions of your favorite fruits and vegetables all the time, so, how do you know which are most important to eat organic?

Since the Rena, a Liberian ship, ran aground on a reef off the coast of New Zealand 10 days ago, an environmental catastrophe has been brewing. Oil is spilling into the ocean, harming wildlife and reaching shore.

No one loves an apple more than a schoolteacher, but even they could learn a thing or two about the best way to eat it.

There are 17 atriums that need to be filled with creative uses.

It's your guide to conquering the grocery store as efficiently as possible.

Everyone is talking about "overtourism" these days. I was recently part of the problem.

Steve Webb thinks we should tax upfront carbon like cigarettes, and we should build in wood and stone.

What do greenhouse gases bubbling up look like? In these starkly elegant images, we get to seem them up close.

The title is deceptive; it is a real page-turner that will open your eyes to what really affects urban design.

In this excerpt from the latest book by the Union of Concerned Scientists, the authors explain why we're standing at a climate crossroads&dmash;and how serious the next decision really is.

Can products be better for people? Can buildings be better for the planet? Gradually, business is waking up to the fact that design can be beautiful and responsible.

It's the practical sequel to 'The Reducetarian Solution,' striving to get more people eating fewer animal products.

There's something magical and awe-inspiring about animal interactions that has yet to be explained by science.

Anyone who knows dogs probably knows the answer to this question.

Contrary to popular opinion, young people aren't practicing what they preach.

Schools are closing classrooms and going online all over the world. This may be as much of an opportunity as it is a crisis.

In the last few years ecotourism has grown from a buzzword to a trend, to full-blown industry. Whether travelers are looking for a rugged adventure or refined luxury, planet-conscious operators have sprung up to satisfy

Creative crafters can come up with all sorts of beautiful and innovative ways to

Every person interested in environmental issues is well aware of the dangers of species extinction and the importance of conservation

I went to Costa Rica for surf camp at the world's most sustainable surf school – it was amazing.

The sci-fi show pulls no punches when it comes to humanity's complicated relationship with work and nature.

A new NOAA report reveals we've lost 95% of the Arctic's oldest, thickest sea ice. Here's what that looks like.

Every year we go look for the latest in sustainable design. Every year the post gets shorter.

TreeHugger writers have a lot of experience with this.

The late artist Chris Burden balanced a Porsche 914 with a meteorite.

Lace is back! A while ago Lloyd wrote about the California-based Eurolaces, believed to be the first company to offer 100% certified machine-made macramé style organic cotton lace trim for apparel or curtains. Now lace has become a theme amongst the

Rule #1: Never let it get soaking wet!

The agency tried to suppress a major toxicology report on perfluoroalkyl chemicals, but now it's been quietly released online -- with alarming conclusions.

Despite their endless commuting, ants don't have traffic jams, regardless of the width of their path.