So every time I see a semi hauling a wind turbine, the following considerations come to mind:  How many blades have been transported for how many windmills in how many areas?  How much petroleum, or coal, or nuclear power, was utilized in the construction of said blades?  How many gallons of diesel fuel were used to excavate the ground to run power lines from the rural areas where the wind turbines are located?

For what genuine purpose are wind turbines planted? Who benefits? And how much maintenance will the turbines, subjected to the elements, require over time? What is the net payoff?