Solve one problem at a time
So wind energy and solar are providing 8% (each ?) of the energy input they can currently address - that's a pretty good result (and as several comments have remarked, one might not want a great deal more served by an intermittent source).
Of course there is much more to be done to address non-electrical energy - demand side as well as the supply side ( smaller, more efficient cars. fewer unnecessary journeys, better insulated houses with more sensible thermostat settings, wearing a sweater in winter etc. etc. ).
There is an excellent, balanced and scientific book on this by Prof David Mackie of Cambridge University "Sustainable Energy without the Hot Air" - either buy it or read it on his website
Its going to take work and dedication to do this, but either we do it or our children in years to come will shake their heads and wonder why their parents were so short sighted, stupid or selfish.