High Tide for Tidal Power?

Is it high tide for tidal power? Clean energy entrepreneurs are exploring ways to turn the flow of the tides into electricity in the Bay of Fundy. The bay, between Maine and Canada, has the world’s highest tides. But Living on Earth’s Jeff Young tells us the Bay’s history also shows just how hard it can be to make tidal power work. Photo: The high-tech blades of the Energy Tide 2 turbine spin in the water as tides come and go. The zero-emissions electricity has so far shown very little environmental impact. (Jeff Young)