Video: Chuck visits one of the first 24-hour card-swipe biodiesel filling kiosks.

Video: Chuck Leavell, keyboardist for The Rolling Stones and cofounder of MNN, sits down with the Indigo Girls to chat about the complexities of touring with bi

Scientists have found a 'world-class' helium gas field in East Africa. That's a big deal, and not just because squeaky voices are funny.

James Harrison's plasma is used to make treatments for Rhesus disease. He has made 1,173 donations over more than 60 years, but now he has to retire.

A great pied hornbill at Jurong Bird Park developed cancer, and doctors used 3D printing to make a prosthetic casque for it.

Large coalition of environmental groups uses humor to fight misconceptions around 'clean' coal.

Coal country Sen. Robert Byrd is crowing about $4 billion he steered towards the false hype that is "clean coal" in the Senate version of the economic stimulus

Recession? What recession? Step right up as the coal industry is loading up on lobbyists.

Coal has made Duke Energy wealthy, yet the company's CEO admits it can be dangerous. Will he solve the problem?

The ACES (aka Waxman-Markey) bill passes the house, but not all environmental groups are rejoicing.

A note-perfect 'clean coal' parody site has become the talk of the Internet. With its Coal Cares campaign, the heretofore unknown activist group Coal is Killing

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.

The New York City Department of Sanitation launches the BetterBin design competition in search of revamped litter receptacles.

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

Perfect for blustery apartment balconies, the student-designed O-Wind Turbine is a national winner of the James Dyson Award.

Migration forecasts developed by researchers at Cornell University help cities and building owners determine the best time to flip the switch.

Woodland hawks, attracted by the songbirds that love backyard feeders, are thriving in cities.

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

Even in Paris, a city with a lot of love for its dogs, public green space has traditionally been off-limits.

Located on the Mississippi Flyway, Chicago is one of the deadliest American cities for migrating birds. But the Windy City is trying to change that statistic.

Buried in the 500-plus pages of the defense budget signed by President Obama on Dec. 31 is a curious provision that prohibits the Department of Defense from spe

Located a stone's throw from a light rail station and a host of ethnic restaurants and public amenities, Dwell Development's Columbia Station is a green micro-c

As LEED for Homes surpasses a significant milestone, the New York Times singles out one area where there's a near-absence of USGBC-approved residences: Westches

The U.S. Green Building Council's LEED certification program reaches a new milestone.

In observation of one of the original New Urbanist-style planned communities' 75th anniversary, Norris, Tenn. gets a self-sufficient prefab demo home.

Calgary will be getting yet another show-stopping skyscraper, this one a LEED Platinum-exceeding mixed-use development designed by Bjarke Ingels Group.

The Earth's globally-perceptible seismic 'hum' is now being used to peer into its depths, shedding new light on the planet's inner layers.

Regardless of where you live, there are birds to admire. Here are some tips to begin watching, including 5 useful apps to try.

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

New report calls for less damage in the development of biofuels.

Polio could be wiped out by 2018, but Gates says it will require investment and hard work.

My new bike has a lithium-charged motor that kicks in just enough added oomp to power me through hills and headwinds.

Video: Sabrina Bryan and Robbie Amell give you their eco-tips.

If a celebrity endorsement gets kids using a phone app that prevents on-the-road texting, emailing and phone use, who am I to complain? But, for the record, Jus

Apply to the 30-Day Electric Bike Challenge and you could be selected to receive an e-bike for a month in exchange for swearing off the use of your car.

Bicycle sales exceed cars in Europe, and there's compelling evidence that pedaling increases the national happiness quotient.

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

Helsinki is experimenting with a plan to match people with rides, making cars unnecessary.

The introduction of the 2015 Kia Soul EV brings the notion of a practical, affordable all-electric car closer to the driveway.

Next week Tesla will announce new home and utility solutions — but do they pencil out?

Running 2 groundbreaking companies at the same time, Musk succeeds by putting himself on the line more than anyone else, says author Ashlee Vance.

Video: At-risk young people get hands-on training and spread their new green skills throughout The Big Easy.

Bjarke attack! The Danish maverick is the subject of a climate-themed retrospective at the National Building Museum.

Beauty abounds in the weather-warped details of Dwell Development's latest net-zero residence.

Co-owned by a quartet of couples, Llano Exit Strategy blends communal living and rural solitude.

Despite its petite size, Bi(h)OME carves out ample room for urban wildlife.

A solar-powered home that can charge a car is one thing. But what if power flowed the other way, as well?

At 208-square-feet, Kasita smart apartments are roughly the size of 6 garbage receptacles.

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

Berlin startup Cabin Spacey has a clever idea for the city's unused rooftops.