Amd what about the wind farm industry here in the US?

Promoters overstated the environmental benefit of wind farms

The wind farm industry has been forced to admit that the environmental benefit of wind power in reducing carbon emissions is only half as big as it had previously claimed.

The British Wind Energy Association (BWEA) has agreed to scale down its calculation for the amount of harmful carbon dioxide emission that can be eliminated by using wind turbines to generate electricity instead of burning fossil fuels such as coal or gas.

The move is a serious setback for the advocates of wind power, as it will be regarded as a concession that twice as many wind turbines as previously calculated will be needed to provide the same degree of reduction in Britain's carbon emissions.

A wind farm industry source admitted: "It's not ideal for us. It's the result of pressure by the anti-wind farm lobby."

For several years the BWEA – which lobbies on behalf of wind power firms – claimed that electricity from wind turbines 'displaces' 860 grams of carbon dioxide emission for every kilowatt hour of electricity generated.

However it has now halved that figure to 430 grams, following discussions with the Advertising Standards Authority (ASA).

Hundreds of wind farms are being planned across the country, adding to the 198 onshore and offshore farms - a total of 2,389 turbines - already in operation. Another 40 farms are currently under construction.

Experts have previously calculated that to help achieve the Government's aim of saving around 200 million tons of CO2 emissions by 2020 - through generating 15 per cent of the country's electricity from wind power - would require 50,000 wind turbines.

But the new figure for carbon displacement means that twice as many turbines would now be needed to save the same amount of CO2 emissions.
http://www.telegraph.co.uk/earth/energy/windpower/3867232/Promoters-overstated-the-environmental-benefit-of-wind-farms.html