(V):   The US may have the resources for "Green Energy" but the technology just isn't there.  There is likely potential, but the actual technology to produce the vast quantities of energy needed just isn't possible technologically at this point.  One oil well can supply far more than a multitude of green energy sources.  It's not my opinion on the matter, it's just the facts we are currently facing.  There is no possible way to replace fossel fuels with green energy.  We are still in the very early stages of discovery.  Yes we have found green energy sources, but the output is limited.  And in the meanwhile, other countries around the world will continue to produce oil based products and unless the US does too, it will be at the mercy of others.  Exploring green energy sources is one thing.  But we cannot talk ahead of the game.  We are not at a point where green energy can sustain people's energy needs on larger scales.  In theory perhaps, but in practice, no.