> effectively unsustainable due to the materials they are made of and their actual lifespan not offsetting the initial financial and environmental costs I don'

> effectively unsustainable due to the materials they are made of and their actual lifespan not offsetting the initial financial and environmental costs I don't know where you got the information from, but I can assure you that that is not the case. Wind is extremely sustainable, even if we factor in the carbon footprint of the production and construction of the wind farm.