I think that there may be case for concern in all of these, except one.
I don't think that we face energy shortage problems
Reasons
There appears to be a huge reserve of carbon based energy. Whether or not we should be using it is a topic for debate. The point that I'm making is that it's available.
There are plenty of non-carbon energy sources available. Sure some are still in their infancy, but will be available, IMO, when developed to the extent that they compete, economically, with carbon based energy. These include
Solar
Wind
Tide
And of course the one that is currently out of favour, Fusion atomic energy.
The ability to harness fission energy is an interesting prospect.
