Seaflow

Seaflow was involved in protecting whales and other marine mammals. According to Wikipedia, Seaflow was a local non-profit ocean conservation organization based in Marin Country, California, dedicated to reducing and regulating ocean noise pollution from active Navy sonar and large vessels. They worked to protect whales, dolphins, and marine life in general from noise pollution "through science, creative action, the arts and community participation." The group appears to be inactive at this point.