Interesting convo about energy.
I think it's always important to remember that no energy source is 100% perfect. All will have their downsides. New energy needs a chance to evolve as technology develops.
I think experimentation and innovation are a good thing. We get caught up in 'what's the best right now', but I think we need to be of the mindset that one or a few of these can developed further and lead to a better future.
For example, I've mentioned before that I geek out on science podcasts. I gravitate towards those that a 'futurist' in nature. In regards to energy, most scientist believe that we'll eventually be able to harness the sun's energy. When that day comes the entire planet will be powered at no cost. There was a figure that went something like: if we could harness one millionth of ONE sun ray's energy we could power the entire planet for 1,000 years. If technology and investment in solar leads to this then I think it's important to let innovation develop. It's counter-productive and rather obtuse to say solar (or any energy source: wind, nuclear, natural gas, etc.) is not the answer because, at the moment, it's not as powerful, safe, reliable, takes up too much land, kills birds, etc. We are in the infancy of sustainable/clean energy, there's no telling where any of these industries will go or what they can lead to. The cream will eventually rise to the top.