It's a bit odd to be attempting to inform yourself of pros and cons you don't know, but also make a very strong opening statement about wind power. I work in the energy industry and I can honestly say I've never heard someone refer to wind turbines as "effectively unsustainable." Maybe, as a joke? But certainly not in any serious way.
If you want to learn more about wind in general you can cherry pick sections from the recently released Wind Vision[1]. It should be able to answer most anything you'd wonder about.
I honestly wasn't trying to make a strong statement, but given the reactions and the downvotes, it does seem like I didn't come across as intended, my apologies for that.
And thank you for the reference, I will make sure to read through it as soon as I get more time.
If you want to learn more about wind in general you can cherry pick sections from the recently released Wind Vision[1]. It should be able to answer most anything you'd wonder about.
[1] http://www.energy.gov/windvision