A giant sinkhole, the length of two football fields and six stories deep, opened up in a New Zealand farm in Rotorua.

From fewer migraines to more self-esteem, there are so many mental and physical benefits to growing old.

Even dining out for lunch twice a week can really add up.

Formed by two wood-clad shipping containers, Skit 2014 is the ideal living arrangement for eremitic types who don't mind ladders and composting toilets.

A family ate organically for 2 weeks, reducing pesticides in their bodies big-time. Here's why it matters.

This German concept of cooperative living could be a great alternative to the retirement community.

To'ak Chocolate is fair trade, USDA organic-certified and exclusively sourced from rare cacao beans found in Ecuador.

FarmedHere, a new 90,000-square-foot indoor farm, just opened in the suburbs of Chicago and is now the largest facility of its kind in the world.

Korean scientists create energy-saving windows that reflect heat in the summer and absorb it during the winter.

The agency hopes that public access to the information will encourage collaboration and innovation across the computer science community.

A new study suggests Americans actually dread family visits, especially the part that involves spending the night there.

It costs 1.6 cents to make a 1-cent coin. Given the pollution it creates, what's the point?

College textbook prices have outpaced the rate of inflation since the 70s, but here are some creative ways to find course materials for less.

Two environmental journalists call for the Environmental Protection Agency to become more open to the press and thus to the public.

Looking to make this holiday really special — without breaking the bank? Consider homemade gifts. Here are 10 ways to put a special glow into Christmas.

The delicate tremble of aspen leaves in low-wind conditions may generate enough backup energy to save and extend the life of future Mars rovers.

Don't dwell on the bad stuff that happened in 2016. Take a look at the year's best news.

American employers may have paid a steep price for the eclipse, but it was just what the nation needed.

With frigid weather throughout the country, communities offer the homeless respite from the dangerous temperatures.

More than 400 people have had problems filling EpiPen prescriptions. Maker Mylan has had "intermittent supply constraints," which may reduce availability.

Human-based pathogens are showing up in penguin poop, and that could spell serious trouble for the Antarctic birds.

Despite an uptick in public spending, 30% of city residents live more than a 10-minute walk from the nearest park, according to the 2018 City Park Facts report.

The 'Vessel' is massive collection of stairs located in New York City's newest development — Hudson Yards.

The Greenbuild 2011 keynote address is sure to get you fired up about green building.

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

Harmony House for Cats’ new shelter isn’t just doing something good for Chicago’s felines — it’s also doing something good for the planet. The no-kill

The Danes are helping kick-start Colorado's green energy economy.

These plug-in supercars are big on sex appeal and horsepower — but you've never heard of the companies that make them.

It was a combination of hubris, professional rivalry and a desperate bid for success in the American market.

Why not design our homes so that we can get at the things that need to be changed? That's the idea behind "Open Building".

The after-school carpentry wizards at Sawhorse Revolution have big, community-bettering plans for micro-housing.

Finn the conservation dog was trained to sniff out pesky rabbits, and in the process he protect native plants and threatened Humboldt penguins.

Although they are getting better at it, many consumers still do not spend every last penny that is credited to their gift cards.

Worlds collide as energy corporations, Fortune 500 CEO's, nonprofit leaders and 60,000 protestors try to make sense of the Copenhagen climate talks.

Video: MNN blogger Karl Burkart chats with Current TV about the politics of blogging at the Copenhagen climate summit.

Climate talks in Denmark are on hold after a group of developing nations walked out over concerns about abandoning the Kyoto Protocol.

Canada does an about-face on its climate target (if only) and the G77 suspends talks after a move to eliminate Kyoto Protocol language.

A 'prediction market' is betting on the outcome of Copenhagen. Here are 4 experts making their own predictions for COP15.

Ethiopia shocks African nations by supporting the new draft agreement at Copenhagen. Drama sure to ensure tomorrow.

NGO's furious over new draft agreement and a radical reduction of badges at the Bella Center. Only 300 delegates will now be allowed in.

The U.S. secretary of state makes the ACES climate bill targets official and pledges to build a $100 billion fund.

Both environmentalists and U.N. officials agree ... COP15 was a 'failure.' But the 'Copenhagen Accord,' though flawed could mark the messy beginnings of a post-

Video: Rachel Maddow is joined by <i>New York Times</i> columnist Thomas Friedman, fresh from attending the climate change conference in Copenhagen for a discus

Video clips from the great Copenhagen march for the climate.

Fast food and environmentalism aren't always seen as compatible. The owner of this green-built McDonald's hopes to change that.

It's hard to sift through all the free cookbooks, home improvement and other books that Amazon offers for the Kindle for free - especially when many of them are

Open Table pays $10 million to Foodspotting for its library of user-generated restaurant food photos.

A lunchbox and a thermos may be the best tools for saving money during the work week.

If the whispers about Amazon are true, the few independents still left should be afraid, very afraid.

One San Francisco-based tech company is offering a $10K option to those who move away from the city.