While rising sea levels ultimately influence the entire planet, they pose the greatest threat to the islands sitting at sea level.

A small island in Louisiana where peppers are grown for Tabasco sauce is losing land to rising sea levels.

Not only can coral reefs buffer humans from disasters, but protecting them is 15 times cheaper than building sea walls.

President Barack Obama challenged world leaders to join the United States in fighting global warming. Watch the entire 10-minute speech here.

Climate change has already taken a serious toll on human well-being and world economies.

A young poet from the Marshall Islands reportedly 'brought world leaders to tears' at the U.N. Climate Summit.

A key focus of this week's Transformational Media Summit is how sharing stories can change attitudes to help us create a more peaceful world.

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

Colorful diagrams help us understand how much of which foods we should be eating.

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

Polar bears have shifted to a diet of more land-based food in response to climate change and melting sea ice.

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

Metaphysical services are disappearing from the online marketplace faster than you can say 'I bind you, Etsy, from doing harm ...'

Shanghai's largest organic farm branches out into the hospitality industry. The first step? Constructing a visitors center from over 70 shipping containers.

From its roots in ancient China, the healthful beverage tea has become one of the world's most popular drinks.

Everything you ever wanted to know about the history of coffee.

Lockheed Martin recently claimed to have designed a fusion reactor that can fit on the back of a truck. If viable, it really could change the world.

Noise impacts ecosystems in more ways than you might think, as these marine studies prove.

The Fortingall Yew has been male for centuries, so maybe it's finally time to branch out.

Manchester's City of Trees scheme will plant one leafy specimen for every resident.

What a 1944 experiment on starvation can teach us about modern dieting.

These instructors are inspirational, and they've changed the world in their own particular ways.

RAN targets Tar Sands oil with dramatic banner at Niagra Falls urging President Obama to 'just say no' to dirty oil.

Climate activist Bill McKibben says now is the time for the Obama administration to stand up to the richest industry on Earth.

A stray cat helped Sarper Duman recover from depression, and now he helps other strays and plays piano for them.

T. Boone Pickens talks politics, climate change and polar bears during his latest visit to Washington, D.C., to speak to the National Press Club.

Toy giant freezes purchases from supplier accused of deforestation.

A new study finds that earthworms cause soil to release more greenhouse gases.

After scrutinizing thousands of peer-reviewed climate studies, the largest analysis of its kind reveals a 'gaping chasm' between science and public perception.

The Swedish home furnishings giant plans to offer 'lower carbon alternatives' to the signature pork and beef meatballs sold at its in-store cafes.

Climate change may be stripping nutrients from the most basic of foods, and that's making its way up the chain to us.

Researchers suspect it could be in reaction to melting sea ice as well as human noise pollution.

Michael Pollan discusses how the food system uses too much fossil fuel and reminds us that solar energy from plants is free.

Check out the amazing transformation one man goes through after hiking from Georgia to Maine.

Julie Marburger paints a dim picture of the American classroom.

Lisa P. Jackson, administrator of the Environmental Protection Agency, discusses climate change with Jon Stewart.

Lisa Jackson's first official visit to China results in the creation of a new committee, but will the committee be able to achieve anything?

The Southern Hemisphere will experience more devastating wind and waves as the world warms, according to new research.

You can watch Leo DiCaprio's "Before the Flood" free online.

At the heart of an ambitious clean energy project envisioned by the Dutch is a man-made island nine times the size of Disneyland.

A shift in how you think about housekeeping could result in a tidier and more relaxed life.

Handling small tasks immediately can boost well-being and reduce stress.

A new online investing platform will fund energy-efficiency improvements for churches and nonprofits in poor neighborhoods.

The red brittle star appears to use its color-changing powers for vision.

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

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

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

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

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.

From your blood pressure to your vision, here's how barometric pressure might affect you.