The blades are a problem too. They are difficult to dispose of, cause even more damage.
Truth be known, the people who came up with this, don't care about the the planet.
They're making money, that's their only concern. Big cats, birds, whales exc...being harmed don't matter to them.
Plus, the inside of the blades are filled with Balsa wood.
Balsa trees grow primarily in the Amazon Rainforest.
So, they cut the trees down, scare the cats away and maybe wack a few Condors when they are spinning around.