Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
America's national parks are at their most vivid in springtime. Celebrate National Parks Week with us with this breathtaking visual tour of some of the most beautiful sights.
With avalanches, glacial floods and a dwindling water supply, Mount Everest may become unclimbable in the very near future.
In honor of Earth Day, let's see how worldly you really are.
The frozen soil contains millions of beryllium-10 atoms, with levels comparable to tundra soil in Alaska. Only certain regions Africa and Australia have older landscapes.
See how much you know about our nation's treasures!
Portland authorities faced a tough decision this week: To drain a large reservoir or provide residents with pee-tainted tap water? To some controversy, they opted for the former.
Mushrooms are amazingly diverse, running the gamut from vivid colors to lacy shapes to glowing in the dark. We celebrate the bizarre beauty of fungi with these 14 particularly odd specimens.
Celebrate National Park Week with a free pass to any one of our country's 401 national treasures.
Decades of oil exploration have contaminated soil and water in the Ecuadorian Amazon. Could mushrooms help clean them up?
Surf photographer Zak Noyle started his career at a very young age and skyrocketed to acclaim. His incredible portfolio of images makes it clear why.
The 2010 BP oil spill left a lasting legacy that the National Wildlife Federation says is still killing animals in record numbers.
Scientists managed to create a timeline of events by looking for the isotope beryllium-10 in the rock pile to gain insight into the 4,500-year-old geographical enigma.
Along with a reduction in chemicals that destroy the ozone, the Arctic's unique environment aided in its recovery.
The ancient bee nests suggest that the area around the La Brea Tar Pits was once moist and forested.
Palm trees should conjure more than just the image of a tropical paradise. This diverse family of plants has a rich history entwined with our own.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.