U.S. first lady Michelle Obama and Dr. Jill Biden, wife of U.S. Vice President Joe Biden, host a party at the White House on May 10 for mothers, grandmothers an

Photographer Elena Shumilova creates timeless images of childhood that touch people all around the world.

What happens two months after a major environmental disaster, when the lights go out and everyone stops paying attention?

Engineer Henry Liu is honored for inventing a way to transform toxic waste into environmentally friendly bricks used for construction.

EPAcoal.org launches a Twitter campaign to send a strong message of support to the EPA for regulating toxic coal sludge so it doesn't enter the water supply.

A new EPA proposal attempts to limit toxic emissions of air pollutants from coal and oil-fired power plants.

A regular marathon will sound like an easy warm-up compared to these crazy yet compelling endurance races.

American runners are getting slower, and it's not because more women are running now then ever before.

As the 'Mad Pooper' terrorizes Colorado Springs, many are asking why runners are so obsessed with poop anyhow.

Knowing how to measure metabolic equivalents is an easy way to sneak in exercise and make sure all your movements count.

Running doesn't have to be a struggle. Here's how to become a runner for life.

Tokyo, which cleaned up its act in the 1970s, is a role model as the Chinese capital starts to address some of the world's worst air pollution.

Many American likely aren't aware that the air in their homes and offices may be cause for concern.

What good is it if all of the historical cities and natural beauty in China are covered by haze?

Loopholes in the Montreal Protocol may need to be tightened, researchers say.

Electronics giant announces it will compensate workers relocating to China for the poor quality of air they will have to breathe.

Bringing nature into the workplace can give you a bit more energy and reduce stress.

A new report from the American Lung Association finds that nearly 148 million Americans breathe unhealthy air.

Chilean soccer fans are urged do the unthinkable and kindly step away from their grills due to worsening air quality levels in Santiago.

The Gogoro Smartscooter doesn't have a plug; Instead, you swap batteries at a GoStation and you are on your way.

It's a breakthrough that scientists around the world have been pursuing for years.

Preference for "cleaner" male trees and plants in urban settings may trigger extra sneezing and wheezing. That's botanical sexism, says Thomas Ogren.

The air inside your home can be more polluted than the air outside. Want cleaner air? Here are 11 natural ways to clean your indoor air without using chemicals.

Here's a graphical glimpse at America's most endangered wildlife, where they live and how many are left.

It's no Jurassic Park, but a flea stuck in amber for 20 million years may still shed light on the Black Death.

Single roots can have thousand-dollar price tags, attracting poachers into protected lands, so what makes ginseng so valuable?

Researchers have launched a mission to find the Javan fishing cat, the rarest cat in the world.

Endemic species run a higher risk of extinction because of their geographic isolation.

Even core areas of pika habitat 'are vulnerable to climate change within a timeframe of decades,' researchers say.

The giant bug, Lord Howe Island stick insect, was rediscovered in the early 2000s, and now scientists have confirmed it's in fact them.

The U.S. Fish and Wildlife Service declared the eastern cougar extinct after it not being seen for over 80 years.

Take the quiz to win 4 tickets and VIP access to one of the band's end-of-the-year shows in Atlanta.

Become a fan of Mother Nature Network and win this top-of-the-line solar charging device -- perfect for your summer vacation.

Become a fan and win this wine and cheese picnic basket set with accessories.

Prickly pear margaritas are a delicious introduction to this fierce fruit.

For the holiday weekend, and all summer long, try this easy trick for making a lot of large ice balls at one time.

Honeysuckle and lemon balm foraged from the backyard or your farmers market flavor this vodka cocktail.

Try this pretty pineapple-orange and vodka cocktail.

You make jam in the summer, but you can enjoy it year-round when you make this tasty drink.

Lifestyle blogger Kate Richards opens up about the feathery inspiration behind her boozy masterpieces.

Stocktails are simply savory cocktails made with broth, and we talk to an expert about why they're such a hit.

This simple lime-cutting hack gives you more juice and has the added benefit of less cleanup when you're done.

Nonalcoholic cocktail drinkers deserve balanced drinks, beautiful glassware and the ritual of drinking a cocktail, too.

Stealing bar glasses to keep as a souvenir goes way back and plays a key role in the mint julep, Kentucky Derby relationship.

The discovery of huge amounts of water ice and possible organic compounds on the heat-blasted planet Mercury suggests that the raw materials necessary for life

Mercury, named for the Roman messenger of the gods, is the smallest planet in our solar system and the closest to the sun. Check out these amazing images

This devilishly difficult quiz will separate the auto experts from the pretenders.

Sometimes scientists infuse some pop culture into their species names. Can you match the celeb to the critter?

Before you scoop up your next bowl of ice cream, test your knowledge about everyone's favorite summer treat.

They're massive, they're all-natural and, in most cases, they're millions of years older than we are. So how were these amazing landforms created?