A device undergoing clinical trials in the U.K. may detect cancer by analyzing the compounds left by cells' biochemical reactions.

If you have trouble performing these tests, your life could be cut short.

The Ozark chinquapin tree was believed to have been wiped out by blight, but it has slowly resurfaced.

On Monday thousands of Americans will march the streets of Washington, DC to protest against coal and the damage it causes our environment and society.

Matt Jones was arrested by TVA police after driving home elderly residents from a community meeting discussing the coal ash spill.

Movie star Darryl Hannah and NASA scientist Dr. James Hansen were arrested along with dozens of others after blocking access to a coal facility.

New analysis of basalt rock formations on the Eastern Seaboard of the U.S. reveals the possibility of cleaner coal.

A study in Philadelphia finds that transforming vacant lots into green spaces has a beneficial impact on mood and wellbeing, particularly in low-income areas.

In an effort to combat pollution, China is building 'forest cities' and people will be moving into the first one in about 2 years.

From Vietnam to London to rural Boone County, Iowa, these fancy footbridges are a feast for the eyes.

How do you squeeze a fancy new 407-acre state park into Brooklyn? Look no further than two former landfills on Jamaica Bay.

Here are 14 of the oldest continuously inhabited cities in the world.

A new retrospective study finds that 1980s-era cleanup of Boston Harbor was well worth it from a return on investment standpoint.

Dubbed 'the smartest park ever built,' the Public Square and Gardens at Hudson Yards is now open for visitors.

The Center for Green Schools, an initiative of the U.S. Green Building Council, has published the first Best of Green Schools list.

The U.S. Green Building Council announces that a not-too-shabby 20,000 residential building projects have been bestowed with LEED for Homes certification and t

Attractive but not arresting in appearance, the Paradigm series of green prefabs from Seattle's Method Homes has the potential to achieve recognition from the w

Every year, the number of green college programs — and the number of students enrolled in them — rises, as careers in environmental policy, sustainability,

Researchers say the beautiful new flame, inspired by fire tornadoes, may provide an eco-friendly way to clean up oil spills.

Moving invasive purple sea urchins off the California coast helps to restore balance to the ecosystem.

This middle-of-nowhere cave may have never been seen by humans.

Kenaf, the carbon-sequestering monster plant, provides food, shelter and carbon credits.

MNN rounds up some of the Web's most useful tools for shrinking your footprint.

This month, scientists and tree lovers celebrate the 2nd birthday of a hybrid chestnut tree that may be a force in reducing the impacts of climate change.

A new website makes it super easy to help save the world, a little bit at a time.

Which form of travel gives off the fewest emissions? Let's just say it pays to carpool.

What is Uber anyway? Is it a taxi service or as it claims, a technology platform, or something else altogether?

Quant's fire-breathing electric supercar performs great — on paper. The futuristic battery tech is cool, but will it work?

Nine of the top 12 cars on the 2015 ACEEE list are either plug-ins or hybrids.

The City of Lights is for lovers ... and pedestrians, bikers and transit riders.

And no, we won't be able to use ringtones. (There will likely be standardized noises.)

There are many different types of staircases that can make your home a more efficient, safer and even a more attractive place.

A tour of the Bullitt Center in Seattle confirms that it's as green as it can be.

Michael Green, champion of lanky, carbon-neutral buildings, sets his sights on the City of Light.

It's a little bit Ewokian, a little bit New Urbanist and a whole lot intriguing.

Honestly, it would be a touch difficult to hit the books on a campus this wildly verdant.

The man-made foothills are most definitely alive in Cupertino.

The treehouse-esque bunkhouses of Whitetail Woods Regional Park score big at the AIA Housing Awards.

Bosco Verticale, Milan's literal vertical forest, boasts the equivalent of 2.4 acres of richly green land.

Brazil's once-expansive Atlantic Forest has now almost completely disappeared.

Only 68 critically endangered Javan rhinos are left on Earth.

The newly identified species may already be at risk of extinction due to habitat loss, researchers report.

England is poised to introduce a sweeping ban on the import of endangered animal parts, including those from "trophy" kills.

Bring the great outdoors into your home with Three Bad Seeds' line of wilderness-inspired pillows handcrafted from repurposed scrap fabrics.

Give the real estate-fixated college graduate in your life a well-designed, practical gift that will be put to good use in their first post-grad abode.

From the venerable, eco-conscious publisher comes a new place to find great gifts, fairly made jewelry and sustainable fashion.

Black Friday and Cyber Monday aren't the only days when you can get good deals on a range of gifts.

With college grad gifting season upon us, here's a handful of useful, unique and starter apartment-friendly household items.

'Tis the season to mend, modify, repair, tidy-up and perform (not too strenuous) energy- and water-saving tweaks around the house.

If you're doling out gift cards for Christmas, you might as well just give out cash.