Renewables have been getting huge tax subsidies for years. They aren't panaceas. Solar farms take up massive amounts of space and reflect lots of heat in a concentrated area. Wind turbines have been known to harm wildlife, as well. One problem with wind is that it is most effective at night, when power use is lower. Batteries can help store that electricity, but there is naturally the issue of what the batteries are made of, and how efficient they are at storing electricity.
The reality is that we'll need a combination of energy sources for a long time. How this factors into Apple's car plans remains to be seen.
