Just so you know, fossil fuels are a renewable energy on a large enough timescale. It's the massive rate of consumption and waste of them which is the issue.
Switching to biofuel or solar or wind at the same massive consumption rate will not fix the issue.
> fossil fuels are a renewable energy on a large enough timescale
No they're not, at least coal isn't because it was formed from trees and other heavy cellulose based plant matter that wasn't broken down by microbes millions of years ago, but would be broken down today. Oil and Methane may be "renewable" but not in a timeline worth considering.
Switching to other methods of generation would fix the problem of climate change caused by the release of CO2. Other issues are definitely important, but not on the same level as unchecked global warming.
Do you mean that there do not exist any energy sources which are renewable at the rate we require, or that using such sources at the current / future rate would still be irresponsible for some reason?
Switching to biofuel or solar or wind at the same massive consumption rate will not fix the issue.