Is it the correct solution, if it allows us to spend effort and money migrating our energy mix away from fossil fuels? Is it the correct solution, if we have a

Is it the correct solution, if it allows us to spend effort and money migrating our energy mix away from fossil fuels? Is it the correct solution, if we have already shifted our economies to carbon-neutral or -negative modes? These are very different situations, and we only have time and money to focus on so many things at once.