Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
Two documentaries revisit the 2004 disaster and explore how science has advanced since then.
Competitors may have to fend off raw sewage and litter in Guanabara Bay and other venues — even as officials scramble to clean up the area for the big event.
Looming sequoias, bulbous baobabs and gnarly bristlecone pines shine in new book.
This beach scene looks like a beautiful abstract painting.
Scientists are puzzled by exactly where all these bodies came from as there were no large cities nearby to justify such a large gravesite.
As the polar region warms, it becomes easier to access for various enterprises, including untapped energy extraction sites and new shipping routes.
The formation of the rock, and the diamonds within it, remain a mystery, but the rock is likely very old.
Glaciers all behave differently, and their behaviors can influence scientists' data and thus their predictions about sea level rise.
President Obama has blocked future oil and gas drilling in the bay, which provides 40 percent of U.S. wild-caught seafood.
Believe it or not, these amazing images of icebergs and tropical beaches are not photographs.
Construction is about to begin on a massive, Chinese-built canal through the heart of Nicaragua — but there are many people who want to stop it.
'Extreme Realities' on PBS explores how severe weather is linked to climate change and global security.
The primatologist sat down with MNN, sharing her thoughts on climate change, compassion and a dog named Rusty.
Regardless of whether you believe the myths and legends that surround them, it's hard to deny the sublime ecological power that mountains represent.
While you may think it's the walking that does the trick, there's another factor at play.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.