Examine the facts, then decide for yourself.
Denmark is the world’s most wind-intensive nation with more than 6,000 turbines generating 19% of its electricity. But consider this:

Not one fossil fuel power plant has been closed
50% more coal-generated electricity is needed to cover wind’s failings
Pollution and carbon dioxide emissions rose 36% in 2006 alone
Danish electricity costs are the highest in Europe

So what are the Danes saying about wind power now?

“Windmills are a mistake and economically make no sense.” – Neils Gram, Danish Federation of Industries
“Wind turbines do not reduce carbon dioxide emissions.” – …

Although wind energy is a potentially useful renewable energy resource, insufficient emphasis is placed upon optimising its efficiency in operation under UK renewable energy policy and planning guidance. Exaggerated claims are made about its efficiency in terms of actual and likely capacity factors achieved. Noise and health impacts are understated in industry, and some government, literature. Impacts on residential property prices have still not been adequately assessed. The industry claims that the planning system in the UK presents more obstacles than in, for example, Denmark, Germany or Spain, are ill-founded. …

About a fifth of the electricity produced annually in Denmark is generated by wind. Of this, just over a half can be used directly within national borders over the year. The rest must be exported (often at much reduced prices) to preserve the integrity of domestic grids.
The need to backup the variable supply of wind power with electricity from combined heat and power plants for internal use, and the necessity to export large surpluses of wind power, mean that domestic savings in carbon emissions are relatively small at the present time.
Investigations …