How does wind power create pollution?
It doesn't really, with a couple of small exceptions.
Wind energy does not create any direct pollution as nothing is being burned.
However, some wind farms have had local people complain about "noise pollution" from very large wind turbines. They can make a regular "thawump, thawump, kind of sound that can cause neighbours to complain.
The other source of indirect pollution from wind energy is in the contraction of wind turbine blades and gear box housing. Any process that makes metal parts will create some pollution during this manufacturing stage, but this is also true of any power generation technology.