yeah i cant really find a single scientific article that supports your case. All that i have found are saying the exact opposite.
http://iopscience.iop.org.unr.idm.oclc.org/article/10.1088/1748-9326/6/4/045102/meta;jsessionid=4FB668237BA804C840106026240F6D32.c1.iopscience.cld.iop.org
That link might not work for you because its to a journal through my universities library. But i mean, the abstract says it all.
"In the BLUE Map scenario, construction of new capacity contributes 64%, and repowering of existing capacity 38%, to total cumulative greenhouse gas emissions. The total emissions of wind electricity range between 4% and 14% of the direct emissions of the replaced fossil-fueled power plants. For all impact categories, the indirect emissions of displaced fossil power are larger than the total emissions caused by wind power."
This is also talking about the possible expansion of wind power to 22% of total power, and it is still much cleaner.