The eco-engineering is discussed from the view point of realization of the sustainable society and creation of the new industry of [1+2+3] industry, which will be empirically proved in the community special zone. This new industrial system can be economically driven by the low cost fuel energy produced by hybridizing fossil fuels such as natural gas and coal with renewable energy of biomass (biomass-hybrid fuel). When this hybrid fuel is mainly used as a low cost fuel for production of the

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... ry industry such as agriculture, forestry, stock raising, and fishery, the productivity in the 1st industry will be increased. This productivity can be further accelerated by introducing the green market for those products made by using biomass in the hybrid fuels. This system can progressively reduce the CO 2 emission by increasing the green market, because the renewable energy of the biomass can be increased.