Running and walking may have similar benefits, but are there times when is walking better than running?

A new study reveals that a lean, fit body equals happy teeth and gums.

NBA star LeBron James may have just launched a new fitness revolution with his use of "yoga bubbles."

A study in the Lancet looked at over-60 walkers, and those who worked on a busy London street didn't fare as well as the park walkers.

The benefits of cumulative exercise are well-documented. Here's how to get your exercise, 10 minutes at a time.

The fitter you are, the stronger your brain will be as you age, which can help increase joy and improve cognitive function.

Outdoor air pollution has now been classified as 'carcinogenic to humans' by the United Nations.

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

Paris gives cars the boot on this popular thoroughfare one day a month to promote clean air and exploring the city on foot.

PVC puts out a lot of nasty stuff when it burns, and it's probably still in the soot.

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.

Five of the best 7 months for Beijing air quality have occurred since last summer.

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

Mankind does some weird things to save animals from extinction.

The sun, like many stars, may be a binary, meaning it could have a mass-extinction-causing 'brother.'

Become a fan of MNN on Facebook and be automatically entered to win the entire fabulous line of Martha Stewart Clean natural cleaning products!

Fan MNN on Facebook and you'll be automatically entered to win an organic kit that will help you score green cred before you leave the house in the morning.

Mint is front and center in this classic cocktail synonymous with the Kentucky Derby. You can choose how you want to make it, though.

Make your sipping simple this holiday weekend with these easy-to-throw-together drinks.

Open up the liquor cabinet, pull out your shaker, and celebrate your hard work with a cocktail.

Low-calorie cocktails abound, even if they're not labeled as such. The key is knowing the amount of alcohol and sugar in what you're drinking.

Shake up your holiday drink options with these creamy cocktails that aren't eggnog.

A festive punch lets your guests know you're ready to celebrate.

Seltzer that's low in alcohol and calories is all the rage.

The oddball asteroid Lutetia is a rocky remnant of the material that formed Earth, Venus and Mercury about 4.5 billion years ago, a new study suggests.

A medium-size solar flare erupted from the sun this weekend, hurling a cloud of plasma and charged particles toward Earth on a cosmic path that is expected to d

We're surrounded by any number of dangers, but which ones should you really worry about? Take the quiz to find out what's more likely to summon the Grim Reaper.

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

MNN introduces you to the key characters in the Eco-bama drama including Steven Chu, Carol Browner and more.

The Museum of London will showcase part of a 143-ton chunk of fat, diapers and baby wipes that was removed from the city's sewers.

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

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.

A few hacked e-mails does not overturn the mountain of science behind global warming, and if you think otherwise you're either coldly disingenuous or informatio

Are ex-KGB hackers behind "Climategate"? What's the latest drama in Copenhagen? Can a regular, affordable home really produce more power than it uses?

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

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.

Earth Day has provided the occasion for a tsunami of eco-friendly apps for the iPhone and now Android gets some green love.

Empowering consumers to make smart decisions can change the marketplace and shrink our national energy footprint.

Center for Environmental Health's new guide attempts to consolidate electronic buying guides from many nonprofits.

A light-emitting diode (LED) developed at MIT operates at 230-percent efficiency. That's not a typo. LEDs will provide 70 percent of the world's general lightin

From data storage to time-saving, a seamless network of everyday objects in the workplace would make offices more efficient and productive in a variety of ways.

Benny the beagle was the subject of a 1,000-person search that also involved a helicopter.

The ad, meant to highlight the environmental costs of palm oil, has touched the hearts of millions.

A wet and rainy winter after a wildfire year could give California a beautiful super bloom.

A street dog named Mera tagged along with a expedition and climbed 23,389-foot Baruntse, a mountain in Nepal.

Lisa Hendy is the first woman to become chief ranger at Great Smoky Mountains National Park.

Trust Chanie Kirschner when she says you can't go wrong with flowers and chocolate -- organic or free trade, of course.

For seasonal shut-ins in need of some straight-up pampering, look no further than this assortment of lovely, low-impact at-home spa goodies. (And no, I didn't f