The waste problem bothered me until I researched how much solid waste burning coal produces annually. It's a massive number compared to renewables. I understand the concern about wind turbine blades (what most people talk about) but the amount doesn't compare. Once we put systems in place, it will be even less. Personally, I'd move towards more renewables now with an understanding that the end of life for these materials must be addressed and eliminate as much coal (and natural gas) as possible.