Because a single day of #OptOutside isn't enough for real action.

According to experts in the failure of oil and gas pipelines, there are a handful of factors that can contribute to a pipeline rupture, like the one in Mayflower, Arkansas. A new report finds all were in play on the Pegasus pipeline.

New study finds Aliso Canyon disaster’s impact equivalent to annual greenhouse gas emissions from over half a million cars.

The online-only financial institution will provide low cost loans for solar, electric cars and even electric-assist bicycles.

Flow Loop introduces a new closed loop shower that will bring back one of life’s little pleasures: a long hot wet shower.

We always write "Learn from Denmark." We take it back.

Residents of the driest inhabited continent, Australia, have evidently been cottoning onto the fact that water means life and we need to be more thoughtful in our use of this rather precious resource. Since the year 2000, Australians have managed to

XEROX/PARC Spiral Water Filtration Technology A typical water-treatment plant is very big and very expensive. XEROX's Palo Alto Research Center (PARC) has come up with a new technology that could make the whole process cheaper and simpler, potentially

Using solar stills to purify water isn't a new idea, but it's an effective one. And now new efforts are underway to use this old technology to help green the desert.

A new desalination technology company is looking to help clean up and recover some of the trillion gallons of salty wastewater from the oil and gas industry.

This might be one of the smartest ways to use a smart thermostat.

The smartest features of a smart thermostat may actually be the pretty simple.

The dual source heat pump uses either the ground or the air as a heat source.

You'll be surprised at the decorative potential contained within the recycling bin.

From saucy to the divine, the origins of some flower names add even more to the loveliness of their blooms.

Why aren't people lining up for this enclosed solar powered e-cargo tricycle? It pushed every button.

A new book, Allowed to Grow Old, reveals beautiful portraits of something we don't get to see very often: Elderly farm animals.

It's impossible for a human to know all of the hundreds of thousands of species of flowers on our planet, so Microsoft has developed flower learning software.

Our photo of the day comes from Calgary, Canada.

It has its ups and downs, but Harald Buschbacher's idea might be the best of both transit worlds.

Another door has closed for Western nations hoping to dump their trash overseas. Maybe it's time for another model?

Storing solar energy for when the sun doesn't shine or wind power for a calm day costs too much. But that could all be changing.

There are many special things about the home of Gennaro Brooks-Church, the director of the green building firm Eco Brooklyn.

Get a taste of tiny house building, thanks to Jake and Kiva, who are documenting their tiny house building process, step by step.

Most costumes are single-use plastics, made from polyester that's essentially disposable and non-recyclable. We can do better than that.

Select zoos are enticing green families with healthier treats and recycled crafts this Halloween

If you love knitting and even just like mushrooms, these creations will be addictive.

The latest urban intervention to celebrate the city's status as European Capital of Culture is an unusual film venue for pedestrians.

A cafe in Fairfield, Connecticut is growing produce on its roof. A permaculture expert makes some recommendations on how to do even more.

This problem gets worse as cars get bigger and heavier, no matter what they are powered by.

Emulating the same processes naturally found in rainforests, this prototype filters and cleans water of harmful pollutants.

It helps you determine what it will cost to heat, and what you should do to seal it up.

Done with that pencil? Sink it in the soil for a second life.

Our commenters helped determine that the species of this cool tropical flower is Kohleria affinis.

Make your garden attractive to bees by planting specific plants, but be sure they're organic and indigenous to your region.

A new campaign is seeking to turn the city into a pollinator's playground by planting a wildflower for every resident.

The colorful papier-mache cocoons provide a safe haven for bringing baby bees into the world.

While large wind turbines remain the dominant force in wind power, wider adoption may lie with small-scale turbines fit for urban and low wind conditions.

Urine for a surprise as Alex Wilson concludes that urine collection beats composting. I was, because they are not mutually exclusive.

Insect hotels are architectural, recycled and perfectly formed. But you can't stay there: they are for the bugs.

During this year's extremely cold winter full of ice storms and the effects of a polar vortex, moments of warmth between strangers are created in a bus shelter.

What to do about all that CO2 emitted when you make cement? Inject it back into the stuff and turn it back into limestone.

Got a froggy "city throat"? It might be from metal particles emitted from braking cars and trucks.

In the end it needs to work, fit the budget and be easy to install. To divide our spaces, we opted for low-VOC drywalls, locally made in Spain. That way, no floors or ceilings shall be harmed!

The Internet is a surprisingly powerful tool for shopping locally.

I have to admit I'm a bit the green grinch of the family: I really can't stand all the mindless consumption over the holidays, and I'm always pushing the buy nothing concept. I don't even have a Christmas tree.

Pangaia's FLWRDWN offers a cruelty-free and sustainable option for keeping warm.

The rain on this year's show dampened the plants but not the spirits.

Bigger isn't always better when it comes to life and gardens at Chelsea.

Can you bear to look at these intimate and frightening photos of grizzly bears.