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One benefit is that the US and other rich countries will no longer depend on foreign oil. The best benefit that the entire mankind can benefit from is that the emissions of greenhouse gases will considerably. The two possible benefits are enough so that the government and automakers continue with their goal in producing hydrogen powered vehicles and a hydrogen infrastructure. If the government does extend the much needed assistance, hydrogen technology will soon benefit everyone. The quest for hydrogen fuel cannot be realized if only the automakers like General Motors and BMW push for it. They need help from the government and the support of the public. If man wants to save the planet, hydrogen fuel is the best answer rather than depending solely on combustion engines. Check out BMW hydrogen powered vehicles online now.
http://www.alternativefuelstips.com