In anticipation of Obama's visit to Canada, environmentalists circulate petition to stop 'dirty oil.'

China will turn away 24 types of recyclable material imported from the U.S. and other countries due to concerns over contamination.

DNA found in chewed birch pitch helps scientists recreate image, but it's also unraveling other Stone Age secrets.

The hard material known as cementum in our mouths may record our lives' most intimate details.

Wick Moorman on our history

Norway says it will end all fox and mink farms by 2025, and it's the first Nordic country to take the step,

The bald eagles of the Decorah and Decorah North nests in Iowa are the stars of two webcams that let us follow along with their daily drama.

A massive bald eagle is filmed in slow motion taking off from a street in Melrose, near Boston.

Chicago residents have a new way of treating the flu, but is it worth the risk?

Before you give in and resign yourself to a week of suffering, here's what you can do to fight a cold virus as it starts.

Stomach flu, or viral gastroenteritis, can be as common as a cold. Here are some home remedies for the stomach flu to ease discomfort.

The Department of Homeland Security now counts hurricanes as national security threats, and now weather modification is under consideration.

New York Gov. Andrew Cuomo drew a comparison between Hurricane Sandy and Hurricane Katrina, claiming that the October superstorm was "more impactful" in many wa

Storm surge is seawater pushed ahead of a storm, mainly by strong winds. Onshore, the surge can rise several feet in just a few minutes.

An extremely dangerous storm is slicing toward northwestern Alaska and is expected to bring blizzard conditions and hurricane-strength winds to the state's west

Thanks to arctic air from the north and a dip in the jet stream, superstorm Sandy has gotten stronger and is now a snowstorm on top of a hurricane and post-trop

East Coast folks: Stock up on munchies, get those prescriptions filled and get ready to hunker down for the next day or two.

The lauded structure is bustling with activity as a whopper of a winter storm approaches.

They make for winter wonderlands, but snowstorms can be dangerous and disruptive events. We take a look at storms that hit the East Coast hard.

A new, award-winning public arts project makes good use out of building materials salvaged from Detroit's sizable supply of destroyed/derelict homes.

Conservation group Lion Guardians has helped East Africa’s Masai tribesmen bring back the big cats and better their own lives.

Our sustainability commitments help us cut costs so we can pass those savings on to our customers

Watch this replay webcast of Walmart's Global Sustainability Milestone Meeting.

A new book by Brett Graff helps parents drown out the cultural noise and reduce parenting anxiety when it comes to spending money on our kids.

A new study seeks to define what a 'hyper-palatable' food is, and how they're specifically designed to make us eat more than we should.

Making food from scratch is wonderful, but there are some snacks out there that should probably stay store-bought.

Professional volleyball player Colleen Smith will be traveling greener during her season with the help of biodiesel, a good tent, and a bike custom built by Tre

The young female set a new speed record for her species.

Two guys peddled the idea of making money with renewable energy and biochar but ultimately ended up just taking their investors for millions.

Here are a few ideas that can help you live a lighter, healthier, more sustainable life.

The island nation is using its natural and cultural resources to attract filmmakers from around the world.

Your next camping trip should include this camp stove, which is capable of efficiently burning biomass materials like pine needles, small twigs and wood chips.

The world's natural rubber comes from Southeast Asia, but the company is using an unassuming Texas bush to make its rubber all-American.

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

New book about the painkiller industry has already been optioned by Warner Bros.

Author John Temple was granted unprecedented access to the controversial family.

These are the best preserved specimens of this extinct Arctic lion ever found.

How this little prince grew into the tyrant king of the dinosaur world.

Thanksgiving shoppers in search of the best holiday deals no longer have to head to the store.

The remains of a megalithic monument, the Dolmen of Guadalperal, have resurfaced in Spain.

From the words of a shipwrecked castaway to a sailor looking for love, these bottle-bound missives have tales of their own to tell.

A contest to reveal the truth behind the mysterious inscription on a boulder in France produces two winners.

The ancient weapon, likely owned by a Roman Centurion, was discovered in Germany by a 19-year-old intern.

The truth is that crop circles are more art than alien. Still, it's fun to suspend your disbelief, if just for a second.

The holiday isn't complete until you've seen The Old Man open his frageelay leg lamp. We double dog dare ya to resist these famed A Christmas Story quotes.

From amazing puppy rescues to grumpy feral cats, the decade was filled with wonderful pet stories that will warm your heart.

Get past the haircut and remember this: Poodles are incredibly smart and athletic.

While parts of the country were still sweltering, the West was hit by a weekend snowfall.

Record-setting blizzard called Winter Storm Aubrey is expected to hit the midsection of the U.S., from Colorado to Minnesota.

Massive storms often trigger earthquake-like seismic activity on the sea floor.