RObert that too would bar wind and some water generation.
In part it could be true but the very use of such may help reduce such changes.
I get gale force winds,dust storm like spooky whistling winds, for days.
My panels are near the chimney, this is the first year I have not used it 24/7, gone gas.
I have never had to clean my panels.
We will,within ten years see big out back or near sea panel banks with wind water and gas fired power we will cut but not do away with coal fired power generation.
The future looks interesting.

http://www.bbc.co.uk/news/technology-13977038
Stunning, but I think it backs up my belief humanity will find new and better ways in the next 100 years.