If we want to have any impact on this, it's going to take decades of time so the economic impact of a world wide industry shift will be as minimal as possible. The problem is, getting that many people behind it and organized is, well, really not likely at all. For the moment we need to focus on research so we can have an efficient method. We do have a few (nuclear) that are proven to work well, we just have other end problems to sort out. Once we have a viable alternative in place that can be implemented and be economical, we'll be good to go.
But really, I still say we're fucked.