I'm concerned about climate change. But if you ask most people how much progress we've made they would say "barely any". That belief that we can't do it, is the main thing aside from public policy slowing us down. When people think things are hopeless, they often don't see the point in fighting or changing their behavior. I also think most people don't realize that renewable energy adoption has accelerated so quickly the last few years. Every year we have had massive growth over last year in adoption.

Solar is easily the cheapest energy and its getting cheaper every year. Repairing a coal power plant is not as attractive as a much cheaper to run biofuel plant. Etc.

Here in germany we have investors abandoning half build solar parks cause they aren't profitable anymore.

Without knowing the specifics, I doubt profitability was the issue. Once a solar panel is installed it is pure profit with minimal maintenance. Companies get in trouble when they commit way more to a project than they can raise in investments. It seems more likely that is what happened.

Lastly your looking at a few countries that are pushing back with what amounts to theater (Germany is 56% renewable energy). Meanwhile the largest producer of energy in the world, China, is staying committed to converting to renewables and s also 56% of the way there.