Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
It's hard to know what to do with a material that at once makes our modern lives possible while at the same time polluting the bleep out of the environment.
South Carolina Gov. Mark Sanford ended up a few thousand miles away from the Appalachian Trail. The Sierra Club wants to help him find it.
India's government has spent millions to clean up the Yamuna River, but it remains one of the world's most polluted waterways
David Santuomo, an Ohio firefighter, has been sentenced to 90 days in jail for the basement killing of his two dogs. He didn't want to put them in a kennel.
NASA photos reveal 25 years of explosive growth, but it comes at a price.
There's a big difference between green and greener. We have a long way to go to get to green.
A few four-legged friends are catching waves at a California dog surfing competition.
Public health threatened by coal waste
A red-tailed hawk dries its wings in Spokane, Wash., as local residents keep predators at bay.
Fast-spreading algae has spread quickly along crucial New York waterways that provide drinking water.
Hate to mow the lawn? Here's a new trend in the British countryside that's bound to help.
Residents of a Tulsa apartment complex called management complaining that two raccoons had taken up residence in their soda machine.
A Missouri family is living in a cave -- a 17,000-square-foot super-modern cave home built with local, recycled materials.
The Today Show visited a farm that saves and takes care of unwanted horses.
Attempt to preserve Brazilian rain forest has led to what some human rights advocates call apartheid.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.