Big moves going on in water supply control in the UK since it was privatised in the late 80's, now we have companies like Nestle screwing with the water table and making ridiculous profits selling it bottled.
Two things i think will solve the energy problem, cold fusion (replicated at over 200 labs around the world, just not replicable every time) and electric motors that get around Lenz's Law.
If we survive our self-destructive tendencies it could be an amazing future.