Well ...  our local academic Jeremiah (Tom G.) says we're already "stuffed", no matter what we do.  ;-)

The most credible plan out there I've seen was a study by the Stanford Engineering Department, whose state-by-state survey came up with a tailored mix of wind energy, photovoltaic generation, hydropower, and fuel cell transport that would be necessary to meet current energy needs in the U.S.  But even they had to assume that hydrogen fuel cell tech would advance quickly enough to be a viable replacement of the IC engine for transport (no guarantee of this) - and they admit that their scenario would be the work of decades (40 years! i.e., two generations), not a matter of a simple Act of Congress and an imaginary rebate system.  :-/

If we ditch our sources of cheap energy before we have viable replacements, thereby bringing down high-tech civilization,  destroying our high standard of living, and curtailing our life expectancy - what will our grandchildren truly think of us then??