On Tue, 3 Nov 2009 10:57:28 -0800 (PST), Frogwatch
wrote:

I have also flown at low altitude over arrays of wind turbines and was
appalled at how destructive they were to the environment. Each
required a road to service the turbine regularly and the turbines were
like ugly blotches on the ridges. By contrast, the average
producing oil well can barely be noticed even from low altitude and
gas wells are even more invisible.

There are at least 500 windmills visible from I-35 and I-90 between
Des Moines and Rochester, Minn. No roads whatever. Not even one. As
for oil wells, there are visible moving parts roughly the size of a
car that will attract the eye from two miles up.

Casady