Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
Were the craters caused by melting ice? Are they sinkholes that just happen to be very round?
Located on nearly 19.3 million acres of tundra in the northeast corner of Alaska, this natural treasure is the largest and one of the most remote refuges in the United States. It's also one of the most threatened.
This versatile fiber can keep you looking good or speed you down the highway.
A new study reveals eye-opening statistics about the health benefits of our arboreal cohabitants.
As you zip down the highway, take a closer look at the shrubbery and grass. This roadside greenery soaks up a lot of carbon, and with better management, it could soak up a lot more.
A drop in biodiversity before the asteroid hit serves as 'cautionary tale' for humans and our effect on the ecosystem.
This 12-square-mile island has a population of less than 900 people, and it's exactly where you want to go when touring the Aran Islands.
The controversy around the amount of sea ice is due to the dataset that scientists have used for the past few years as their baseline possibly being wrong.
By running water over-dried cubes of sandstone, scientists were able to see how the rocks held up weight using fewer and fewer grains of sand.
A new initiative in India will employ up to 300,000 youths in an effort to improve air quality and provide opportunities to the unemployed.
Researchers speculate that these islands formed after the tsunami that battered Japan in 2011 swept items into the ocean.
If humans were wiped out, who would rise up to take our place? Rats? Pigs? Or something else?
The mining project, one of the largest ever conceived, could hold $500 billion in gold and copper.
Whether you focus on the geological history or the folkloric history of Giant's Causeway in Northern Ireland, you'll come to the same conclusion: this is one strange and amazing place.
The gaping 260-foot-wide hole was spotted in an area of Siberia known as 'the end of the world.'
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.