Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
Oregon's Silver Falls State Park is a wonderland of rivers, streams, rainforest and cascading water.
Every spring it becomes abundantly clear why California is called the Golden State.
The Norwegian word doesn't translate easily to English, but the basic spirit of friluftsliv hides inside all of us.
Beaches in the Great Lakes region had the highest rate of pollution, with beaches along the Gulf Coast not far behind.
Photographer Adrian Limani takes a creative spin on the typical sunset photo with this clever conceptual shot.
In 21 African countries, children who lived near forests had more varied diets, a study by the Center for International Forestry Research finds.
This famous view of the highest mountain in the continental United States is reached by a well known yet unmarked trail.
From record-breaking sunflowers to the amazing number of plants used in medicine, this post is loaded with factoids about all of your favorite greenery.
Spectacular views are afforded to visitors who visit this southern most point of the North Rim.
Some of the best places are found off the beaten path, so grab a compass and a map and learn how to navigate your way through the woods.
There are many beautiful slot canyons in the Southwest, but Antelope Canyon is one of the most famous — and for a good reason.
Michigan photographer Vincent Brady offers a stirring time-lapse tribute to the unpolluted night sky — all 360 degrees of it.
Do you know when dinosaurs existed, or which one was the biggest? Find out how much you know about these prehistoric creatures.
Take a look at some of the world's most stunning slot canyons, a list that will make you want to pack your hiking gear.
Is it possible to resist taking such a trail, canopied by verdant branches and leading into a quiet, peaceful woods?
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.