Here are some self-evident truths: Humans need to produce less carbon dioxide—assuming we care a fig about our children’s well-being. But even that’s no longer enough. CO 2 levels in the atmosphere ...

While the sentinel trees of Northern Lebanon may not be as old as some traditions hold, one tree might be more than 1,000 years old. By Katherine Kornei Katherine Kornei has previously reported on the ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Sparkling lights. Festive nights. For many revelers, Christmas ...

Curtis VanderSchaaf is an assistant professor of forestry at Mississippi State University. Every year, Americans buy somewhere between 35 million and 50 million Christmas trees, and many more pull an ...

NPR's Michel Martin speaks with author Sean Rubin. His central character is a tree that was planted at the Twin Towers in the 1970s and stands tall in New York City's Freedom Plaza once again. Today ...