It is, however, extremely low carbon. Wind turbines kill birds and make noise, solar panels need toxic manufacturing processes. But carbon emissions are the overriding problem.
Of course, dirty alternatives have their own toll on wildlife.
1. http://www.smithsonianmag.com/smart-news/how-many-birds-do-w... 2. https://www.sciencenews.org/article/cats-kill-more-one-billi...
15,000x fewer than house cats do though.