The world's forests support the planet's diverse creatures, and keeping forests robust also could help humanity achieve some of its biggest goals.

The head of the U.N.'s World Food Program talks about how we can fix the hunger problem.

Earth has never hosted 7 billion people all at once before, but according to the U.N., it may reach that spooky milestone by the end of this month.

As the Earth heats up and weather grows wilder, meteorologists are on the front lines of an intensifying war with the elements.

More than 100 world leaders and tens of thousands of protesters will descend on Rio de Janeiro next week for the Rio+20 summit in hopes of overcoming years of d

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

Health experts argue that banning the preservative could make it difficult for children in developing countries to get life-saving vaccines.

Quinoa is one of the most nutritious foods on the planet, cooked like rice, gluten-free, and loaded with vitamins and minerals.

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

While traveling through Antarctica, journalist Charlie Bird had an up-close encounter with some adorable seals that left him giggling.

UNESCO protects more than landmarks and culturally-significant sites. There are intangible parts of culture that are important, too.

Is oatmeal truly beneficial for reducing cholesterol and keeping our hearts healthy? Let's review some oatmeal nutrition facts to get the real scoop.

Health ratings on packages could influence consumers' purchasing decisions and drive food companies to make healthier products.

The Institute of Medicine has raised the amount of potatoes, corn and peas it recommends you eat each week.

Clever website factors in diet goals, body type and food preferences to create a weekly meal plan that makes sense.

How healthy are all those cranberries you’ll be eating during the holiday season? You’ll like the answer.

Each day, the average American throws away enough food to keep another person from going hungry.

How healthy is that egg? Lots of factors are involved, but the color of the egg shell isn't one of them.

The health benefits of almonds, which are an amazing superfood, are verified in several new studies.

If you want to get the most nutrients out of your veggies, don't worry about gaining polyphenols or losing nutrients. Just eat them.

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

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

Annual Koch Institute exhibition explores the thought-provoking and stunning visuals behind life sciences and biomedical research at MIT.

Artist Dale Chihuly's whimsical glass art pops up in botanical gardens and museums all around the world.

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

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

The U.S.-backed proposal was opposed by Canada, which is home to two-thirds of the world's polar bears.

In the next decade, the tropics will suffer unprecedented climate change effects, long before the Arctic and its polar bears see big shifts.

The world's southernmost population of polar bears is waiting for sea ice to form just weeks before the U.N.'s climate change conference.

These tiny, lightweight gadgets could mean huge savings for farmers.

Video: Historical films and field work reveal more about endangered Native American language.

Video: Is a trip to the 3-D movies making you sick?

Video: Robots help surgeons transcend human limits.

Eavesdropping on mice for clues about how humans process sound.

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

Your avatar may be just a virtual identity, but it can also affect how you are in the real world.

Babies are oriented towards pro-social individuals. They prefer interacting with a pro-social individual over an anti-social individual.

Video: What was really on the menus of our ancestors?

A comparative psychologist says African grey parrots have the social skills of a 2-year-old child and the intelligence of a 5-year-old.

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

Will Obama’s green cabinet give birth to the next spotted owl?

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.

History has been made. Today is for the hangover, and then the hard work. Six distinguished environmentalists weigh in.

Obama steals a play from the Reagan/Bush playbook, and hopes for the opposite result.

What’s been called the largest wetlands restoration in the Western U.S. was halted in December. California is projecting up to a $42 billion budget shortfall

Sometimes, the big guns in Congress aim to keep stuff 'away' from their states. Senator Harry Reid and the tale of Yucca Mountain is a prime example.

An MNN column causes an uproar in the scientific and not-so-scientific community. Our columnist responds.

OK, I admit. Maybe there's no such thing as climate change. Maybe it's all a hoax. Maybe.

Humanity is often at its worst and wackiest in our search for water. Peter Dykstra on a free-flowing font of bad ideas.

Step right up and watch how the government is misspending your tax dollars on the environment.