Here’s a look at 18 of the world’s most stunning treehouses and the unique stories behind them.

Here are 15 talented eco-artists who are redefining art's relationship with Mother Nature.

BevShots are alcoholic beverages photographed under a microscope, creating artistic colors and patterns.

Mosaïcultures Internationales Montréal invited countries all over the world to submit their most awe-inspiring horticultural sculptures.

The colorful world of topiary art starts with a plant and ends with a masterpiece. Here are 17 examples to inspire your creativity.

For centuries, art and science have informed one another, and the result has been some spectacular creativity.

Maybe a 'U.S. Dept. of Hummer' is the best path to ending dependence on foreign oil.

The 2013 Nobel Prize in physics will be announced next week, and while the identity of the winner (or winners) is a closely guarded secret.

Every decision in the design of a grocery store is made to make you buy more stuff.

From Michael Jordan to J.K. Rowling, these superstars prove the value of perseverance.

He may be one of the most famous men who ever lived, but there's plenty to learn about Nelson Mandela.

From confounding dress codes to exclusion from many events, the road to gold for women has had plenty of quirky twists.

Weight Watchers? Paleo? Whole30? DASH diet? Every diet offers something different, here's your guide to figuring it all out.

In honor of the International Day of Happiness, here's everything you need to know about laughter.

Confused by kohlrabi? Daunted by dandelions? We're here to help. Here's a handy guide to edible leafy greens.

In which we reveal that charming Swedish girls wear lightbulb crowns and Austrian men dress like furry devils.

There are plenty of ways that the animals we love can make us sick.

There's more to an alpaca than their quirky good looks. Did you know the fiber from their fleece is flame-resistant? Here are 11 alpaca facts you may not know.

Koalas aren't bears and they rarely drink water.

From their smart stripes to the power of their kicks, behold the wonders of zebras.

The world's most famous ring of standing stones has been studied for centuries, yet we learn something new about it all the time.

A primer on the deadly virus that has taken hold in Congo and scaring people around the globe.

'Mobitecture' features portable works of architecture including campers, floating cabins and trampoline tents.

Paul Hawken's latest book, 'Drawdown: The Most Comprehensive Plan Ever Proposed to Reverse Global Warming,' focuses on fixes rather than fighting.

'The Art and Science of Ernst Haeckel' is a collection of beautifully illustrated flora and fauna by a German biologist and artist.

In the age of Kindles and chain bookstores, some of these towns are vehemently opposed to e-readers and brand-name booksellers.

Boasting breathtaking design and extensive collections, here are some of the most remarkable bookstores from around the globe.

Most disasters lie outside human control, but some of the world’s most devastating events have been caused by humans.

Even if you don't live near the sea, there's plenty you can do to help the cause.

Divers scoured remote Pacific atolls to collect the garbage, some of which had entangled sea turtles.

Up to 95 percent of the plastic waste carried out to sea by rivers seems to travel through just 10 waterways, according to a new study.

This explore.org film shows how service dog Abby and others helped in the aftermath of Sept. 11, 2001.

A dog lost in Florida is found a dozen years later in Pennsylvania, and her owner and everyone else is in tears.

If you’re thinking about getting some ink, consider these potential health risks before you commit.

Food predictions for the year ahead are flooding in — and some are worth a second look.

Letting go of things we can't control is easy to say, harder to do. But it is possible, and here's how you can do it.

A zero-waste lifestyle isn't as hard as it sounds. These simple steps are the gateway to living a zero-waste lifestyle.

Peter Tabichi, a teacher in remote Kenya who has been giving most of his salary to the poor, became the first African to win the Global Teacher Prize.

In just a year, Karen Jenner has collected 2.4 tons of trash on beaches in Nova Scotia.

Seawalls fail in Holland killing 50,000, a nuclear reactor in Ontario suffers a partial meltdown, and Keiko the orca whale dies.

A magnitude 6.0 earthquake hits Yemen, Greenpeace faces prosecution by the U.S. Justice Department and scientists declares China’s baiji, or Yangtze River dol

Roald Amundsen arrives at the South Pole, widespread bleaching of coral is reported, and IUCN identifies species most likely to be affected by climate change.

The tanker Argo Merchant runs aground off Nantucket Island, the last operating reactor at the Chernobyl Nuclear station is decommissioned and the U.S. Justice D

The Safe Drinking Water Act is signed, U.N. delegates plan to address climate change in 2009, and scientists express concerns over methane release from melting

Typhoon Cobra sinks battleships in the Pacific Ocean, the first version of the U.S. Clean Air Act is signed, and manufacturers agree to phase out the chemical d

"Silkwood" and "Avatar" are released in movie theaters, and Julia 'Butterfly' Hill climbs down from her redwood.

The supertanker Sea Star collided with the tanker Horta Barbosa, and Arctic permafrost may be gone by 2100.

A coelacanth is caught in South Africa, the U.S. Marine Mammal Protection Act takes effect, and male smallmouth bass are laying eggs.

Clean air is legalized, DDT is banned, Pennsylvania dumps its ash in Haiti and India finishes a dam.

National park established, green folk music created, ozone protocol pondered and carbon tax enacted.