Farmers markets are making news for encouraging reasons. Find out what’s happening around the country.

The initiative’s sponsors are looking at Vermont’s local food program as a model.

Alexandra Cousteau ventures out of sight, deep into the cool world of New Mammoth Cave in Tennessee.

Alexandra Cousteau searches for the lost creeks that now flow under Toronto roadways.

Learn how a community was built with pedestrians in mind.

The federal government and private lenders team up on a new green home improvement program, but it comes with a few strings attached.

In his first week on the job, new U.S. Energy Secretary Ernest Moniz makes it clear he sees 'no ambiguity' about the scientific consensus on global warming.

The winds and waves of Hurricane Sandy spilled enough sewage to match BP's oil spill more than 50 times over.

Scientists will release harmless gases in the New York City subway to determine noxious gas threat

QVC star and intimate apparel designer Kathleen Kirkwood wants to recycle your old 36Bs.

It's a bird ... it's a plane ... if it's in New Orleans, it's just a Black Hawk helicopter airdropping old Christmas trees.

North Carolina State University's new pizza box composting project raises the bar for college recycling programs.

If you want paper or plastic in NYC, plan on sharing a few more nickels. The fee goes into effect on Oct. 1, 2016.

What happens when railway station buildings are no longer used? Here are 10 being used for restaurants, museums, homes and more.

How much of a difference can small changes, like recyclable ketchup packets, make?

MIT engineers say this cheap, low-energy process can remove CO2 from the air.

Scientists using artificial intelligence have devised a highly accurate blood test for 50 kinds of cancer by looking for the DNA of dead tumor cells.

Thanks to an abundance of beech seeds, so far this year 150 orange-fronted parakeet chicks have been born in the wild in New Zealand.

New York City passes bird-friendly building legislation to reduce collision risks for birds.

Scientists led by Frank E. Rheindt discovered new five new bird species and five more subspecies on three Indonesian islands.

Scientists have found a new influenza virus that infects bats. But don't pull out the hand sanitizer leftover from the H1N1, or swine flu, pandemic just yet. Wh

For about four months beginning in September 2011, 162 dead or dying harbor seals washed up along the New England coast. Most were pups, under 6 months old, and

The government released a framework to determine to fund research that could create a version of the bird flu virus that could infect by airborne droplets.

A new strain of bird flu in China has sickened nine people, including three who died

ABC News's Dr. Richard Besser says it's easier than ever to get vaccinated.

A brand new flu virus has been found in Peruvian bats.

A 20-year-old woman in Taiwan is the first person known to be infected with a strain of bird flu called H6N1.

Buddy the dog has discovered he can play fetch all by himself.

An abandoned home in New Orleans is transformed into a interactive art installation where passersby are invited to pick up a piece of chalk and share what they'

Actor and comedian co-host massive fundraiser to benefit the green rebuilding of New Orleans Lower 9th Ward.

Company will focus on four pillars to advance the sustainability of its biggest product category, food

Urban foraging is a way to feed your stomach and see your city in a whole new light.

Springtime is the best time of year to start a new garden.

Residents of Bougainville voted overwhelmingly to become independent from Papua New Guinea.

New Zealand opened its 10th Great Walk called Paparoa Track, a 3-day, 34-mile hike across beautiful terrain.

The NAACP on the green economy, a CEO search at Veterans Green Jobs, and Indiana's green jobs future.

Chemical material could speed clean-up at power plants by snapping its jaws at radioactive waste, leaving nontoxic byproducts alone.

Sunlight in the form of fuel? A breakthrough new discovery brings science one step closer to creating clean hydrogen fuel using only water and sunlight.

Rice University students come up with ingenious and inexpensive health care tool for communities without power.

Suit allows its human wearer to breathe liquid like a fish, making deeper dives possible.

Technology could lead to the transformation of clothes, cars, buildings and even billboards.

Renewable energy has made great strides in the U.S. recently. But if you take a look around the globe, you'll find equally encouraging signs.

Clean energy sources are producing record amounts of power in markets across the world.

Israel’s largest international green energy conference takes place this weekend in Eilat.

Corporate renewable energy goals that once looked ambitious are being met much earlier than expected.

Build enough Powerwall batteries and you can run the world on renewable resources.

The WindChill uses biomimicry to help preserve food in rural areas without access to electricity.

By 2020, onshore wind and solar power are expected to be cheaper sources of new electricity than any fossil fuel.

With more sophisticated satellite imagery, we can view Earth from space in new, enlightening ways that expand our understanding of the planet.

We take a trip to a former Civil War-era insane asylum that has been called one of the most haunted places in America.