On a loosely related note, I watched a show on Discovery yesterday about a visionary called Herman Sörgel who had an idea in the 1920s to build a hydroelectric dam to be built across the Strait of Gibraltar, which would lower the Mediterranean Sea thus creating more land and causing Europe and Africa to be united as a single new continent called 'Atlantropa'. He believed this new prosperous continent powered by the dam would eventually usher in world peace. Very interesting.