How can we protect plants from future threats? #science

Michael Dosmann, Keeper of the Living Collections at the Arnold Arboretum of Harvard University, explains how the Arboretum collects, preserves, and nurtures its living collection in the face of increasing threats to plant life. Founded in 1872, the Arnold Arboretum is Harvard's 281-acre preserve located in the heart of Boston. It's home to a living collection of plant life, research labs, a herbarium, and a library and archives. The Arboretum is free and open to the public every day of the week.