what are the disadvantages of using wind turbines?
['The Wind Fluctuates. Wind energy has a similar drawback to solar energy in that it is not constant. ... ', 'Wind Turbines Are Expensive. Although costs are reducing, wind turbines are still very expensive. ... ', 'Wind Turbines Pose a Threat to Wildlife. ... ', 'Wind Turbines Are Noisy. ... ', 'Wind Turbines Create Visual Pollution.']