Since we have moved the discussion content to a broader plateau, I'll hop on the soapbox again, but just for a moment.
I think it will be amazing to future historians to look back on this last century or so. I'm hoping they'll be stunned that our culture learned to become dependent upon a sole source of energy and basically used it to exhaustion before moving to another. I'm HOPING that their sources of energy are far "greener" and sustainable, and I'm betting that they won't be reliant upon a single form of energy such as hydrocarbons (petroleum, natural gas, coal). I firmly believe they will rely upon a multifaceted grid involving a vast array of sources, many of which are not even on the grid today (but are being tested as we speak). Of course there is wind and solar, both to suplement household electricity use and provide heat, but we're seeing an explosion of investiture in massive, mainline facilities (check out the "Mojave solar system" coming soon). Underwater turbines, which could be utilized in large rivers as well as Gulf Stream sites, show great promise, as do off-shore wind turbine facilities (similar to current oil platforms, only cheaper). Then throw in some systems such as geothermal and saline reservoir converters, and probably quite a few that aren't even conceived yet, and the opportunities are even wider. I firmly believe nuclear will be a part of that future grid, but I hope it's only a part. To my way of thinking, an environmentally better solution is to have a diversity of energy providing systems and not a reliance upon a single source that will be used until it is simply too problematic to maintain.
I have great hope and at least an acceptable faith in man's creativity, intelligence, and dedication to the preservation of our planet and its environmental systems. I choose to believe we have the ability to solve some of the dilemmas we've created, and we will.
(Stepping down off the box again...)