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.

A week after someone cut down the iconic tree at Sycamore Gap, the police and local residents appear no closer to answering the most persistent question: Why?

More trees mean healthier neighborhoods, and a new map is helping the city of Chicago identify neighborhoods that could benefit from increased investment in street trees. Health geographer and data ...