**3.2 Wind energy**

Limitations of wind energy include that it can only be implemented in areas of high wind, requires large investment and maintenance, and has relatively low energy densities compared to fossil fuel. Renewable energy used in power generation has grown this year by 15.5%, driven by continued robust growth in wind energy (+22.7%). The increase in wind energy in turn was driven by China and the US, which together account for nearly 70% of global growth. Opponents argue that wind turbines clutter scenic countrysides.
