What happens to old hotel soap? One young social entrepreneur created a humanitarian and environmental nonprofit that saves, sanitizes and supplies recycled hotel soap for the developing world.

From preserved lemons and scrap scarves to flavored salts and bath melts, these handmade gifts can be made en masse for everyone on your list.

Here's what to know about Lynx rufus, the solitary wildcat that roams North America.

With over a third of the world's cranes hard at work building artificial islands, an underwater hotel, and the world's tallest building, biggest mall and most expensive airport, the United Arab Emirates has now turned it attention to building the

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

All over the world, inspired, creative, (and often obsessed) entrepreneurs are tightening bolts and swirling beakers, inventing the next generation of green technology. Andrew Heintzman is a venture capitalist with the aim of finding and funding these

This simple, innovative solar still purifies water without electricity or filters.

By combining solar PV, solar thermal, and a heat exchanger, Desolenator has developed a low-cost portable water purifier and desalination device powered by renewable energy.

An ice cream cart uses solar panels to power its refrigeration unit.

The secret to a diet that makes the microbes in your gut healthy, for fighting obesity and disease

Whether for parental sanity or oceanic health, this is a powerful step toward a much better world.

With a $1 million donation, Andrew and Jane Cliffordhope will double the size of the world's largest cat-free sanctuary.

Until now, no species has had such a profound effect on shaping the Earth's biosphere as the humble broiler chicken.

Is this really how it ends?

It's an industrial design approach, a product that is refined almost to perfection.

The company explains why all-electric homes are healthier, safer, and more sustainable.

Even if the label of "maven" is painfully over-applied, there are people who still deserve it. Zem Joaquin, the stylish polymath behind Ecofabulous.com, is one of those few. Zem has been on the editorial side of mags like House and Garden, Domino, and

Architect and author of Cradle to Cradle talks about green products, his new buildings, and what happened in China.

An affordable, long-lasting and attractive chair made from 100% recycled and recyclable plastic, designed in Barcelona by Estudio Mariscal. Need it far away? Then just buy the seat and get local legs!

It seems like everybody who knows the Cradle-to-Cradle principles thinks they're brilliant, yet adoption of the methodology and design philosophy seems slow. What is holding it back? William McDonough answers.

In cars, houses, furniture and electronics, The trend was toward increasing repairability and simplifying recycling. Apple goes its own way.

Nobody cared much about this a few years ago. They do now.

Looking for indoor plants that are hard to kill? These green troopers are resilient and don't demand too much from their keepers.

From sleep aids to pain relievers, here's how to grow your own natural remedies.

Colder weather provides some unique challenges for indoor plants; here's how to how to help them get through it.

A new study reveals stress-reducing benefits for office workers when even just viewing a small plant on their desk.

Even if doomsday never comes, these 20 plants are some of the most practical you can grow.

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

Roll over everything and get on and off easily on this powerful fatbike.

We have been fans of Seattle's Graypants for a while; Seth, Jonathan and Jon "strive to come up with designs and ideas that are thoughtful and have an impact, whether it be furniture, lighting, architecture or graphics." Most of the work we have shown

Personal care is a big subject, but we'll focus on caring for our general appearance: Cleansing and cosmetics, hair care, skin care, makeup, hair removal and, of course, that time of the month most women deal

Another reason that we have to use less of the stuff.

Recycling isn't enough when demand for aluminum is soaring. We have to use less of the stuff and eliminate single-use packaging.

Remember how aluminum cans are "100 percent recyclable into pure aluminum"? They lied.

Declawing cats often leads to long-term pain and unwanted behaviors.

It will soon be illegal to sell, trade, or donate furs of any kind.

Google and Save the Elephants teamed up to bring Street View to the Kenyan wildlife reserve to show its residents and spread the need for conservation.

Spoiler: your city will be much warmer year round.

Meet the cable that has earned praise as the 'best new technology' and 'invention of the year'

Now you can handwrite letters on your computer.

Researchers combine social media and artificial intelligence to better predict damage from global sea level changes

Our photo of the day is a lesson in efficiency.

Our photo of the day comes from the romantic rain forest of Ecuador.

Forget about wood construction; cardboard could be the Next Big Thing.

Constructed as an "apartment-house" hybrid, this prototypical 753-square-foot house makes the most of a small lot.

Our photo of the day delivers a bit of winter reverie from the waters of Australia.

Made carefully by hand, this food artisan's edible works of jelly art are bursting with colorful flora and fauna.

Think global, act local.

Students will have to take home any waste that is not recyclable or compostable.

Forest ecosystems sequester large amounts of carbon in vegetation and soils, off-setting the carbon emissions we produce and mitigating climate change. The boreal forest and its associated wetlands, in particular, provide critical carbon storage ...