Scotland is betting on tidal energy | PBS NewsHour Weekend

Scotland is betting on tidal energy | PBS NewsHour Weekend: As Scotland transitions from fossil fuels to renewable energy, it is investing in an unexpected source: tidal currents. Similar to wind turbines, which sit above ground, tidal turbines are one hundred feet below water and use tides instead of wind to generate power. In the first of a two-part series, Hari Sreenivasan reports on what may become the world’s biggest tidal power resource.