People are good in producing waste materials, with global production of just municipal wastes of more than 2,000,000,000 tons/year. You can also add the wastes and residuals from agriculture, companies, forestry etc. to this amount. On the other hand, we need a huge amount of energy. So, we should develop smart ways to convert waste to different form of energies such as electricity, heat, chill, ethanol, biogas, or why not materials and make a better environment!
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