If anyone wants to know the best reason for vast spending on alternative energies, one need only look at the anti-American dictatorships that exist only because of the massive amount of cash generated by the world’s dependence on oil. Even if we increase our own production, there is just too much money in black gold, and too much of it is in areas culturally incompatible with democracy.
Just accessing one oil shale formation, the Green River oil shale formation in Utah, would bring on-line 800-1,200 billion barrels of oil, or more than enough oil to supply the U.S for more than 30 years without needing any oil imports! Although the initial cap-ex costs are high, it is far easier to extract oil from oil shale than from tar sands. And with the new in-situ technology, both CO2 and H2O can be captured and reused. Currently, the oil industry actually has to buy manufactured CO2 for use in enhanced oil recovery operations. So the CO2 would be another profit center from oil shale.
Unfortunately, although the technology is there to safely extract the oil, environmentalists, liberals, and democrats refuse to allow any drilling on known oil shale formations.