Haverford College engages in a wide range of sustainability projects to reduce its carbon footprint and benefit the environment.

The Internet connects humans all over the world. But did you know that trees also have a social life? Trees share key resources and communicate with one another through a vast underground network. Although you would expect a tree to be a solitary, lonely fellow, they make complex connections with many other trees using this secret language.

Have you ever wondered why the leaves of the Arboretum’s trees change into a dazzling array of red, orange, yellow, and purple each fall? If you have walked around the Arboretum recently, there is no doubt that you have seen this impressive display. Read on to learn how trees achieve this mesmerizing feat.