Eric Walker added Nova Scotia’s Race to Harness Tidal Power - The New York Times to Sustainable Marine and Tidal power

Eric Walker added Nova Scotia’s Race to Harness Tidal Power - The New York Times to Sustainable Marine, and added Sustainable Marine to Tidal power

Eric Walker added Sustainable Marine and a number of links to Tidal power, and added Tidal power to Earth's oceans and seas and Renewable energy