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It's an article of faith among Japan's fossil fuel advocates that because the country has no natural resources, it must import more than 80 percent of its energy needs.

But if the definition of natural resources is expanded to include waste products that can be turned into biomass energy, Japan has more resources for electricity generation than is often recognized. From wood products to sewage sludge, biomass energy advocates say, the domestic potential for electricity generation from biomass products can be greatly expanded with proper government support.