U.S. doctors believes it's a serious public health concern that requires drastic action.

An exhibit about the pioneering mid-century designers illustrates the innovative ideas that inspired their work.

Bangkok-based artist Nino Sarabutra investigates what really makes people happy, and how much money is needed to live a good life.

From chard on a chair to tat soi in a suitcase, artist Jenna Spevack is cultivating a tasty variety of organic microgreens in her furniture farms -- and visitors to her upcoming gallery show will be able to reap the harvest.

The Royal College of Art graduate students show their (environmental) stuff at the year-end show.

The dumpster full of glowing garbage out front of Switzerland's Gewerbemuseum sets the stage for what's inside -- an art exhibition of works both poignant and comical, all made from discarded plastic bags.

Motoi Yamamoto's salt labyrinths and intricate installations are as stunning as they are sustainable.

The sound of gunshots has been transformed into the sound of music in Mexico's Ciudad Juárez, where artist Pedro Reyes turned 6,700 confiscated weapons into a complete orchestra of fully playable musical instruments.

Green and sustainable used to be buzzwords here. They don't appear to even exist anymore.

Edward Burtynsky, Jennifer Baichwal, and Nicholas de Pencier

From clean air regulations to clean energy installations and requirements for better gas mileage, here's the year in environmental progress, according to the Sierra Club.

I'm tired of every green initiative being hijacked by the negativism in this country. It's time to stand up and turn off.

Last Saturday's Marathon Oil refinery explosion and fire was yet another dangerous, polluting event in a string of environmental injustices to plague the residents of the 48217 zip code in Detroit

Environmental initiatives are integral to addressing the "tale of two cities" that Mayor de Blasio campaigned on.

On February 11, 1994, President Bill Clinton signed an executive order designed to bring about environmental justice.

From palm oil invaders to adorable Sumatran rhinos, this story about a recent environmental victory will inspire you.

It's an unlikely match between a 47-year-old Peruvian subsistence farmer and a giant American mining corporation, and yet the former is winning the battle.

Our photo of the day comes from the rainforest of Ecuador.

Meet one of the insect world's most protective moms.

Or, a lesson in learning to love opossums.

Our photo of the day comes from the rainforest of Ecuador.

Our photo of the day comes from the magical rainforest of Ecuador.

From ants and pantry moths to black flies and fruit flies, these non-toxic DIY solutions are safer and more eco-friendly than traditional pesticides.

Trade the morning shower for one before bed for better sleep and more.

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.

But what will the handrail police say?

After 25 years of buying land in India that farmers no longer wanted, the husband and wife now play host to elephants, monkeys and more; see a new video about their work here.

Supported by the Amrita Bhoomi Agroecology Centre, young farmers are experimenting with natural farming methods, while saving money and lives in the process.

The state of Maharashtra, home to Mumbai, collected nearly $6,000 in fines this past Sunday from businesses that haven't gotten rid of banned plastics yet.

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

The company should really be called 'Eggland's Worst,' based on how these poor animals are treated.

Welcome to my personal dairy dilemma and the weird, convoluted thoughts that keep me up at night.

Another massive recall raises questions about food safety standards -- and how animals are raised.

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.

Our friends over at the design blog Dezeen have launched a pop-up shop in the smartest part of town. Calling it Temporium, because it is only up for 10 days, it features the best of new British design.

I move around a lot - between being home, at school, and now living abroad, I've lived in seven different apartments or rooms in the last five years. And I don't see myself settling down any time soon. That's why I'm

From the impressive Vienna Vegetable Orchestra to hand-carved pipes and whistles in Japan, these creative people know how to find music anywhere, even in the crisper.

This automated smart home system for small apartments takes the effort out of having to transform your all-in-one furniture unit by hand.

For thousands of years, people have wondered how these monuments in Egypt were made.

Finally, Net Zero done right.

What if we declared climate change a crisis and put some serious resources to this type of initiative?

They are cheaper and better than ever, and doing it can cut energy consumption for lighting by up to 90 percent.

If all Americans adopted this (almost) waterless method of cooking pasta, we'd save billions of gallons of water.

Also we've got electric motorcycles and hot rocks.

With a few tips from Grandma thrown in.

Plus two ways to go green as we upgrade our popular series.

Not to mention getting buried in dirt or building with it.

Who says newsletters are old school? We pick the best of each day's TreeHugger and add a little je ne sais quoi

Plus lots of green things.