You say 'please' and 'thank you' and don't talk with food in your mouth, but how much do you know about minding your manners?

Not all penguins make their home in icy Antarctica. See if you know where in the world to find these penguin species.

These iconic pink birds are immediately recognizable, but how much do you know about them? Test your knowledge of these beautiful birds!

When a painting sells for a jaw-dropping price, it makes headlines. Do you know how much these works of art went for?

Whether it's a white lie or a whopper, fibs are part of our daily lives. We like to think we're honest but, well, we're not. Test your falsehood expertise.

Dogs have incredible senses and are like superheroes on four legs. Take this quiz to test your canine know-how.

Lightning is more than just a stunning spectacle. Take our quiz to see how much you really know about this electrifying natural wonder.

Venture capitalists, energy researchers and policy makers gather for first time in New Mexico.

The Sustainable Energy Coalition lists 7 facts about the growing green jobs sector.

Climate activists call for action to strengthen the most important piece of environmental legislation in history.

A dramatic film explores the physical and emotional challenges of living in a peak oil scenario.

Oilman's plan still aims for energy independence, but now focuses on conversion of tractor-trailers to natural gas instead of giant Texas wind farm.

In the 10 years since Osama bin Laden became a household name, we have fought a war on terror, watched oil prices skyrocket and continued to get oil from the sa

Las Vegas hosts a clean energy summit, and politicians pledge allegiance to green cars, photovoltaic arrays, geothermal and wind turbines.

Rich natural gas deposits off the shore of Israel can meet the country's energy needs well into the next century, provided it can be extracted economically.

If fracking techniques pollute water supplies, what will happen to beer production?

A well-known Chinese solar power company has filed for bankruptcy, but this may actually be a sign of health for the industry.

Famed architect Renzo Piano completes a self-sustaining micro-home named Diogene.

Many people want to go off grid and lose the electric bill, but does it make sense?

The Guest-Imator is a digital portion calculator that even considers the amount of leftovers you want to have. It works for vegan meals, too.

Thousands of pounds of moldy cardigans and unsellable denim shorts are being burned in lieu of oil and coal at Västerås near Stockholm.

Mayor Sadiq Kahn wants Londoners to stay hydrated with public water fountains while generating less plastic waste.

As far as creative ideas to keep food food from being wasted go, Toast Beer is pretty brilliant.

A study found that while plastic bag litter has decreased in the U.K. seabed, other forms of pollution have increased.

Here's a good list of items not to put in your garbage disposal, and a bonus list of 3 to be cautious about.

From Buckingham Palace to the BBC, British institutions are putting the kibosh on single-use plastic.

A singular place to say 'I do' in the Seattle area, Brightwater Treatment Plant can process 36 million gallons of wastewater daily.

Second Helpings Atlanta provides a bridge between fresh, perishable food and the people who need it most.

The dictionary's most popular word of the year has to do with waste.

Although new on the Indian retail scene, Ikea already has big plans to alleviate one of the country's largest environmental ills.

You may love Amazon Prime, but the environment doesn't.

As much as 66 metric tons of human excrement from visitors to Alaska's Denali National Park could soon be released into the pristine Alaskan coast.

Malaysia and the Philippines are forcefully rejecting trash from wealthier countries.

The endangered African wild dog has a nose for democracy, according to a study, which explains how the dogs "vote."

Can you spot all of these incognito critters?

When you can smell garbage from miles away, pizza doesn't stand a chance with bears.

Think bird-watching is boring? It's not if you visit these 10 destinations during bird migration season.

The Bramble Cay melomys lost most of its habitat to rising sea levels.

In case you want to give brain-training games a shot, here are 4 to try.

Thanks to the 24-hour news cycle and social media, it's impossible to tune out these politically turbulent times. Here's how to tune in and stay sane.

Psychologists and scientists are concerned about the rising rates of suicide among children, and what the shrinking gender gap might mean.

A colorful oath or spirited expletive can heal the body and soul. (We have the science to prove it.)

The pilfering of e-mail correspondence among climate scientists from a major climate center in Britain two weeks ago has grown into a very public controversy un

Phil Jones and The Union of Concerned Scientists say The Daily Mail misrepresented a statement about climate change data to support skeptics' claims.

255 top climate scientists are reiterating their conclusions on global warming in the face of increased e-mail attacks.

Science lingo may hurt efforts to inform the general public, a new study warns.

Timing matters: Flowers bloom, insects emerge, birds migrate, and planting and hunting seasons are carefully coordinated times in order to take advantage of wha

New flexible glowing sheets are inexpensive, easy to recycle, and could someday replace lightbulbs and OLED technology.

AT&T's ZERO Charger won’t draw electricity from a power outlet when disconnected from a mobile phone.

GE Ecomagination contest hopes to solicit the smartest solutions for a much-needed quantum leap in electrical grid technology.