Earth Day has always had a special meaning for me – a birthday for Earth and a call to action to do what we can to protect it. In 1970, I organized the very first Earth Day event at my school in Oakland. Eschewing the bus, I enlisted a crew of friends in a bike caravan to ride 10 miles to school. Alarmed by the oil spills along the coast, and the poisoning of wildlife and humans from DDT, my classmates and I led a day long teach-in. This was the spark that ignited what has become a lifelong career as an activist.