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Japan is going back to the future, with a new approach to amusement park rides that might transition into the post Peak Oil world. Thanks to Treehugger for the tipper about Japan’s pedal-powered roller coaster.

 The Sky Cycle clearly is set in magnificent scenary.
Traditionally, seems that we fear that roller coasts might kill via a heart attack from fear. In the Post-Peak Oil world (and Japan today), those heart attacks might come form over exertion.
Note: Thanks to Grist for the tip.