Kyoto, Japan
In an effort to prevent global warming and to create awareness of recycling, Kyoto City is collecting used cooking oil, which is normally discarded from households, and refining it to produce environmentally friendly biodiesel fuel. The program educates the public about environmental problems and involves them in a concrete solution. All waste-collecting vehicles and some municipal buses in Kyoto run on biodiesel fuel, reducing carbon dioxide emissions by about 4,000 tons per year.
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