March 1, 2020
Denis Hayes and his wife Gail. Together, they have written a book, COWED, detailing how cows are the second most influential species of mammal on our continent. Photo by Leah Boyer
Stories this photo appears in:
Earth Day Turns 50
Denis Hayes: Known for leading the first Earth Day and heading the Bullitt Foundation
It’s not often you meet someone who says they face each day excited about the work that lies before them. So it is with Denis Hayes, prominent environmental activist, national coordinator of the first Earth Day and president of the Seattle-based Bullitt Foundation since 1992.