We're killing ourselves the way we're doing things with energy right now. So, we'll kill ourselves eventually, whether it's by dangerous oil drilling, getting off oil, starving ourselves, or whatever. Any other energy source, even if clean, will do absolutely no good if we don't change the premises. The premises are that real jobs require long commutes to the office, that we need big nasty vehicles, etc.
With all the technological advancements in communications within the last 20 years, it's possible to change dramatically how we do things in order to save a tremendous amount of energy. Instead, most people want to rely on the scientists and engineers to figure out a way to give us all the energy spoils that we think we need when we really don't.
Every person and every corporation needs to point the finger inward, instead of outward to others. If a sufficient number of people think it's not possible to revolutionize our mindsets, then it's actually NOT possible.
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If you're reading this, it's too late.