• The world's first passenger train powered by hydrogen fuel cells last year on Nov. 7 in Lower Saxony, northwestern Germany. The train is painted with the symbols for hydrogen and oxygen. | ‹?“¯
    The world's first passenger train powered by hydrogen fuel cells last year on Nov. 7 in Lower Saxony, northwestern Germany. The train is painted with the symbols for hydrogen and oxygen. | ‹?“¯

  • Kyodo

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As the world tackles global warming, hydrogen has gained attention as a clean-energy alternative to earth-polluting fossil fuels.

Some hydrogen-powered cars and buses, which do not emit carbon dioxide, are already on public roads, and the government is hoping to display its technology by using hydrogen as a fuel for the Olympic torch and a power source for the athletes village for the 2020 Olympic and Paralympic Games in Tokyo.

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