Can hydroelectric power cause noise pollution?
Hydroelectric power is generally made by water falling through a distance (waterfall, or dam) then striking the blades of a turbine and making them rotate to generate electricity. None of these operations is noisy. Hydroelectric power plants are generally constructed in isolation where any noise is not a problem or where the noise (waterfall) was present naturally and the diversion of the water to the plant would only lessen the natural noise levels.
