As world leaders fly into Rio de Janeiro for Rio+20, thousands of people from indigenous tribes, environmental groups, unions and religious organizations gather

World leaders can't agree on nixing the leap second, so we’ll just keep adding them until they figure it out.

Strawberry nutrition facts. You probably know these berries pack a vitamin C wallop, but there's a wealth of other good stuff inside including fiber, manganese,

Did Nutella, the tasty chocolate hazelnut spread, really need more sugar?

Starbucks will be selling its Christmas Tree Frappuccino only until Dec. 11.

Sue Flood's new book on emperor penguins, 'Emperor: The Perfect Penguin,' is the culmination of 9 years of work.

This year's open category winners of the Sony World Photography competition range from a Chinese shadow puppet show to a mesmerizing underwater dance.

Michigan woman has a 'photo booth' to get a glimpse of the personalities of birds that visit her yard.

Photo of hungry sharks wins Underwater Photographer of the Year contest, which also selected winners in more than a dozen categories.

Photographer Oliver Hellowell believes anyone can accomplish their dreams — even if they have Down syndrome.

Photographer Will Burrard-Lucas's new book 'Land of Giants' chronicles some of the last days of this towering gentle giant.

Photographers capture landscapes, portraits, wildlife and more for Sony World Photography Awards.

The winners in this international dog photo contest range from a blind, senior dog to cute, matching puppies.

It's been 50 years since the Apollo 11 mission and the first step on the moon. Here's a look back in photos.

Science Photographer of the Year contest highlights how photos can open a window to science.

For 55 years, photographers have showcased their work in the Natural History Museum, London's Wildlife Photographer of the Year competition.

Photographer Frank Liu captured photographs of a polka-dotted zebra in Kenya that ended up published in National Geographic.

The people of Churchill, Manitoba, live among polar bears — some of the world's most dangerous predators — for several months each year.

The conservation nonprofit Polar Bears International will use the 360-degree panoramas for educational outreach and scientific research.

Video: Learn about the bobtail squid and its interesting relationship with beneficial bacteria.

These legendary creatures may have something to teach us about survival, even as the clock is ticking on their habitats.

Team at Seattle university is creating largest 3-D reconstruction that anyone has ever attempted, rebuilding the world one pixel at a time.

Video: How climate change is impacting freshwater and saltwater marshes.

Video: Maps can provide real-time traffic information and 'fastest route' suggestions using geo-immersion — new technology that blends the real and the virtua

Hungry purple marsh crabs threaten Cape Cod salt marshes by eating crucial cordgrass.

A freshwater lake the size of the state of West Virginia has practically disappeared. The lessons that the Aral Sea may hold for U.S. waterways.

Garbage science isn't rocket science. Each of us throws away a ton of stuff every year. Literally. The problem, and why it's only getting worse.

With gas prices nearing 5-year lows, sales trends for small and large cars are reversing.

It's dangerous to buy gas guzzlers just because oil is cheap right now. Most pundits predict eventual major hikes in this, our most volatile commodity.

From soothing sore throats and upset stomachs to fighting hiccups and diabetes, the health benefits of apple cider vinegar go beyond fold remedies.

Cranial sacral therapy also known as craniosacral therapy is a gentle technique that releases tensions deep inside the body to reduce pain and dysfunction.

A horse near the East Fire in California runs back into danger to save its family.

Nissan North America offers details about how customers can place reservations for a 2011 Nissan Leaf, with prices starting at $25,280.

Popular maps that have helped bikers and regular drivers now direct electric vehicle owners to the nearest charging station.

The lucky few have gotten their Nissan Leafs, but the company has scaled back its 2011 U.S. deliveries from 20,000 to 10,000, and dampened expectations about a

Even the big cars are fuel misers these days, as buyers with cash in their pockets cast a wary eye on $4 gas. Did GM really roll out a 35-mpg Chevrolet Impala?

This book takes you on a journey to an organic Japanese farm through personal stories and recipes.

Southern Oregon voted to ban genetically modified crops completely, but the rest of the state may end up mapping GMO crops for better regulation.

In just 20 years, the city of Sequim, Washington transformed from a declining arid farmland into a fragrant prairie of purple blooms.

Robert Alvarez, a senior scholar at the Institute for Policy Studies, says the operators of the stricken Japanese nuclear plants are using a “hail Mary” met

There are 104 nuclear power plants in the continental United States, two of which operate in quake-prone areas and others that are in need of major upgrades.

Experts say Japan's kids and unborn babies have the greatest risk of developing cancer from exposure to radioactive material.

Robots need to be tailored made for their nuclear plants, and the Fukushima plant was built prior to the adoption of robots.

There's one piece of good news from Japan: All the wind turbines survived the earthquake and are helping to power some regions of the country.

The FDA issues warnings about high levels of radiation in food from parts of Japan. There doesn’t seem to be too much of a danger of contaminated foods enteri

An earless rabbit allegedly born near Japan's severely damaged Fukushima nuclear plant has become the latest poster child for the side effects of radiation expo

As Japan faces energy restrictions after a particularly trying month of March, normally AC-happy citizens are faced with a daunting prospect: Getting through th

Scientists have improved on a method that uses an acidic solution to remove radioactive material from soil.

A historic moment for the energy industry — leading technology company Siemens abandons its nuclear division in favor of growing wind market.

The plant's operator found substances in a reactor which could be a result of nuclear fission, a possible setback in safely shutting down the plant.