A short video from the U.S. Department of Energy illustrates how the 130' long blades of wind turbines generate power. Trying to build a better planet. Read more from this special report. Shaped a ...

ORONO, Maine -- As waves grew and gusts increased, a wind turbine bobbed gently, its blades spinning with a gentle whoosh. The tempest reached a crescendo with little drama other than splashing water.

The United States and the world are in a race against time to shift from greenhouse gas producing energy sources to carbon-free ones, which at this point means either nuclear plants, hydroelectric ...