Betsy Emes and her campaign to save the trees

Betsy Emes has spent her life donating her time to others. For 30 years of her career, she worked for the World Bank, first in the Economic Institute, then on issues in the Middle East and North Africa, and then in Eastern Europe. When she retired, she got her master gardening certificate and volunteered to work with the National Botanical Gardens's rare orchids.

Now, she's volunteering her time for a new, albeit less glamorous cause: saving Georgetown's trees.