Ooo.. I found just the perfect place to build their dam: http://en.wikipedia.org/wiki/AtlantropaGoogle just has to find a river on google earth, buy the patch of land around it, floor hundreds of square miles of good riverbed farmland, and build their own dam!
Voila! 100% renewable energy, and enough to power 200% of their operations, no biggie really.
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Now on to the next problem of dwindling farmers...
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