160120-N-LV331-003 CORONADO, Calif. (Jan. 20, 2016) Secretary of the Navy (SECNAV) Ray Mabus delivers remarks during the opening ceremony for the Great Green Fleet, a Department of the Navy year-long initiative that demonstrates the sea service�s efforts to transform its energy use. The ceremony was held at Naval Air Station North Island. (U.S. Navy photo by Mass Communication Specialist 2nd Class Armando Gonzales/Released)