Wind farms have made a significant impact in limiting carbon emissions from other sources of power generation in Great Britain. Power from wind farms prevented the creation of almost 36 million tonnes of greenhouse gas emissions from sources such as coal and gas, in a six-year period. This is the equivalent of taking 2.3 million cars off the road, University analysis of nationwide output shows. The study, published in Energy Policy, was supported by the Engineering and Physical Sciences Research Council.
— source ed.ac.uk