Wind turbines are thought to produce energy in a cleaner way than the traditional methods of burning fossil fuels. That's because during their entire lifespan they produce very low emissions of damaging pollutants by converting the power of the wind to energy through motion.
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According to the European Wind Energy Association (EWEA), in its first two to three months of operation a turbine produces the same amount energy required to manufacture, maintain and demolish the turbine during its 20-year lifespan.
A wind turbine produces on average of between 80 and 120 times more power than it consumes, according to EWEA reports.
Wind turbines produce no emissions during operation. Thus, expanding their use to generate energy reduces air pollutants such as nitrogen dioxide and water pollutants such as mercury.
During operation the noise produced by wind turbines has been of concern to environmental groups, but the majority of noise produced is now thought to be covered up by wind noise.
The visual effect of the placement of wind turbines has also been of concern in open, rural areas. New government policies include reducing this impact by creating larger turbines situated in more locations.
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