2012 the end of the world?

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Energy Crisis?? Refer to Hubbert's peak. There's tons of geographical data and if doesn't interest you or hard for you to grasp. Go for James Howard Kunstler, easy reads. The publication have been around since 1970s and they point to peak oil production.

Alternative/Clean/Sustainable Energy are all vast subjects in themselves and their implementation in Urban setting is another issue but most promising energy sources are in development stage and not available commercially. Even once they become available commercially, an expert industry needs to be developed around it to make them more widely usable. Change is a process and not a single step.

As for your solution, we're still waiting to know what is it :)**