http://www.newscientist.com/article/mg21028063.300-wind-and-wave-farms-could-affect-earths-energy-balance.html

http://www.reuters.com/article/2012/04/29/us-wind-farms-climate-idUSBRE83S0BG20120429

http://news.sciencemag.org/sciencenow/2012/04/scienceshot-wind-farms-warm-the-.html


Large wind farms can substantially influence local climate, most
notably by boosting nighttime temperatures, a new study suggests.
Utilizing the same
analytical techniques used to discern temperature trends in urban heat islands,
researchers scrutinized satellite images of a
10,000-square-kilometer area of west-central Texas, home to four
of the world's largest wind farms (turbines near Fluvanna, Texas,
shown). The team's
analyses revealed that in the 9-year period from 2003 through
2011, when more than 95% of the turbines in the area were erected, the
average nighttime
land-surface temperature during summer months in areas where
wind farms were located increased by 0.65°C more than did temperatures
in nearby areas
without wind turbines. At night, when air at ground level is
cooler than that found a few dozen meters up, turbulence generated by
individual wind
turbines stirs warm air downward to heat the surface, the team
reports online today in Nature Climate Change. The warming rates
measured in this
study—the first to show temperature increases based on satellite
data rather than computer simulations, the researchers note—are high
simply
because the region has experienced a rapid growth in wind farm
development. The warming effect for any given wind farm will likely
level off if no more
turbines are added, the researchers report.

Hmmmmmm what do you have to say?