Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
This highly technical sport is one that requires a high level of expertise, but the sights are usually worth the work and worry.
Hungry, coca-eating caterpillars are about to rain down on Colombia's illegal coca plantations.
A California pipeline spilled up to 105,000 gallons of oil this week. Here are some of the most eye-opening photos from the scene.
This desolate-yet-beautiful place is the lowest and hottest place in the United States. But that's not the only amazing thing about it.
Researchers counted an unbroken sequence of 250 waves, some that reached 328 feet in height.
There are 194 species of sundew, and all of them use a devious trick to trap their next meal.
Conservation photographer Gerrit Vyn discusses what it's like documenting a species and ecosystem on the cusp of change — for good or bad, no one is quite sure yet.
The ice shelf won't contribute to sea level rise, but the glaciers that fed into it will.
Mount St. Helens is still recovering from its fateful 1980 eruption, but thanks to the resiliency and ever-changing nature of our planet, it's already come a long way.
Norwegian artist Andreas Lie creates breathtaking visual images of the natural world.
Even in this day and age, knowing how to tie a few basic knots can be beneficial.
The Saving Endangered Species Youth Art Contest encourages kids around the country to get passionate about wildlife conservation.
The dams provide hydroelectric power and jobs, but they also have many distressing consequences.
The U.S. just gave Shell conditional approval to drill for oil off Alaska. Here are 5 reasons why that's a bad idea.
Decades have passed since the creation of these iconic posters, but their visual impact lives on thanks to nostalgia.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.