The most troubling aspect is that wind energy can only generate sufficient electricity to power major cities with massive wind farms, as energy density of wind is relatively low.

Major cities hence supplement with geothermal, hydro dams, coal, natural gas, and/or nuclear. These also work as backup to cover the intermittency of wind energy.

Then after only 25 years the blades are buried in landfill with full replacement required.

In this context, traditional solutions and soon advanced nuclear thorium molten salt reactors (in commercialization) become superior environmentally (low pollution or compact), in sustainability (low emission), and economically (long lasting, electricity available 24/7).