Sewage overflow is a major problem in the Big Apple, but with a little more green on city rooftops, the overflow could be prevented.

Hawaiian engineers think that it can address many of the world's problems. Are they too ambitious?

Really, this trend should be nipped in the bud.

This reconstruction scheme in China encourages resilience and self-sufficiency.

A tropical skyscraper by WOHA and Patricia Urquiola is wrapped in a vine-covered sunscreen.

This modern, Scandinavian take on the hostel includes private rooms and a jacuzzi in the old vault.

A traditional dwelling has been preserved by renovating it to include a new office, library, kitchen and guest room.

Diverging from the Sprinter van conversion trend, this man revamped an old life-saving vehicle into his own tiny home.

This simple idea could change how governments deal with the environment.

Turns out, environmental issues are not about awareness. People get it.

Kids have been digging in salt mines for thousands of years.

Yes, slavery is still legal.

It turns out that helping mining regions move on is just good politics.

New wind and solar will be cheaper than 96% of all existing coal by 2030.

The digital currency is in its death throes.

And we thought it was all about symbolism...

The leader of the Catholic Church used his strongest language yet to call for 'decisive action, here and now.'

Growing up in California, I was never really scared of earthquakes -- they happened frequently and most caused little, if any,

photo: J. Novak Food Freedom recently reported that Chavannes Jean-Baptiste, peasant farmer leader of the Peasant Movement of Papay (MPP) called the entry of Monsanto seeds into Haiti "a very strong attack on small agriculture, on farmers, on

Living some 6,000 miles away from the Gulf of Mexico, I'm a bit embarrassed to admit that the oil spill often seems like an abstraction to me. A big, big abstraction, but still.

The shocking photo above is of gigantic piles of human feces left in the open air at a dump in Haiti. While some in the "developed world" (I always hated that term), may turn their noses up when we recommend composting toilets

Some time ago I posted on the efforts of Joe Jenkins and GiveLove.org to promote humanure composting toilets in Haiti. But this was nothing new. In fact, one of the non-profit partners behind that

The thin layer of topsoil that covers much of the earth's land surface is the foundation of civilization. As long as soil erosion on cropland does not exceed new soil formation, all is well. But once it does,

Haitian schools connect to the internet for the first time, powered by the sun.

Now you can get your morning coffee fix celebrity-style, thanks to an alliance between Leonardo DiCaprio and LaColumbe coffee -- plus, all proceeds support sustainable initiatives.

While global warming naysayers seem content to continue flouting the overwhelming scientific consensus in favor of this anthropogenic phenomenon, they seem to have gotten one point largely right: hurricanes didn't suddenly begin massing over the past

Bluefin tuna is on the verge of total collapse. Maybe. It depends on who you ask. We may have been talking about

She may not have caused the most property damage, but the superstorm extraordinaire holds some impressive records.

In Haida Gwaii the trees are so big that you could live in them.

The palm oil situation is bad, but some people argue that it would be worse if replaced by other vegetable oils.

The reports are in from last week's "Good Jobs, Green Jobs" conference in Pittsburgh, Pa., and attendees are saying it was a great success. More than 1,100 people attended the Blue Green Alliance conference. People networked, listened to speakers and

One more US city fully commits to transforming itself into a better place to live for all.

It's a more environmentally-friendly way to dispose of a body than burning or burying.

Using officially documented research and color-it-yourself data visualizations, this project aims to convey climate change data in an engaging way.

Carbon sequestration, the technology taking carbon dioxide out of fossil fuel emissions, just got a boost

If one geoengineering plan doesn't work, maybe two or three combined will

The health of young people is disproportionately harmed by climate change, and the government has failed to keep them safe.

The contents of your bag reveal more about you than you might think, but what about your choice of bag itself? District Cotton, a New York City-based company dedicated to fashion with a conscience, has a couple of sturdy options that are as socially

With a population that approached 1 million and a surface area of more than 115 square miles, the Khmer city of Angkor in Cambodia was the largest preindustrial settlement on the planet. After coming into being during the ninth century A.D., it thrived

Previously unknown species in a relatively undisturbed bioregion of the Mekong River in northeastern Cambodia have been uncovered by a recent study — 24 in total, including a so-called "corpse

For the first time, conservationists from WWF are putting dogs' superb sense of smell on the trail of tigers in Cambodia. Coming from the University of Washington Conservation Canines program, the dogs are trained to sniff out

There are only an estimated 116 wild Asian elephants in Cambodia's Seima Protection Area, and until now most of the photographic evidence of them has be taken by camera traps. New footage released by the Wildlife Conservation Society changes that. The

They may sound progressively eco-friendly, but a new Greenpeace report explains why they're not.

It's a moving target and, like TreeHugger hero Chris Magwood, we are all learning on the job.

It also can put people back to work and save our forests.

The KISS principle applies to everything, including building design.

Because a fringe candidate is a climate denier, it's now a political issue.

Unless, of course, TINA gets in the way.

"No justification can be possible for this nonsense."

The DIE Moto, the diesel-engined motorbike which we have covered before, has broken the land speed record for a diesel motorbike, with a speed of 130mph.