Fifty years ago I was cheering and celebrating the First Earth Day with hundreds of other people in the center of West Hartford, Connecticut. My five children, ages 11 to 4, were with me. I don’t know what they took in and what they made of all the excitement, but it was exciting. And I can report that Betsy, age 6 was already beginning her career as an activist. Betsy was in kindergarten at the time and she…