Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
All you need are some carbon dioxide molecules and a special laser.
Scientists have also found evidence of deep water hills that were likely created by a combination of faulting and volcanism.
Scientists detected the dip in gravitational force when they noticed that glaciers and ice shelves tugged more gently when satellites sped by overhead.
This area has been settled since the 13th century and now its biggest draw is tourism. It's no surprise why, when you take a look at the landscape.
Do you have a special nature spot where you go to find a few moments of peace? If not, you can borrow this one.
Our planet has lost half its creatures since 1970, a new report finds, but there's still time to save the rest.
The volcano started with a phreatic eruption, which can be like a volcano clearing its throat before a normal eruption.
When trying to create jaw-dropping landscape photos, don't overlook this single most important step.
The U.S. is expanding a marine sanctuary near Hawaii to create Earth's largest no-take ocean preserve.
To protect wilderness, we have to define it. And that definition can be harder to discern than you might guess.
Moving invasive purple sea urchins helps to restore balance to the ecosystem.
These long-haul hikes, all longer than 1,000 miles, put you in touch with scenery, cultures and lifestyles that few get to see firsthand.
Well, perhaps a photo can suffice. Meditating on this image is sure to calm your nerves and make you sigh a peaceful sigh.
You might have heard of nocturnal and diurnal animals. But did you know animals like rabbits, house cats and deer are neither of these? Find out about when these species are actually active.
Bryan Pijanowski, a self-described 'soundscape ecologist,' has installed microphones around the world so he can capture the planet's noises.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.