The word "waste" isn't really applicable nowadays. Waste can be used for power generation, as proved by Russian researchers from the N.E. Bauman Moscow State Engineering University. Using bad-quality coal, sawdust, and other low-grade biomass fuels, students who are focusing on non-traditional power engineering are putting these traditionally low-value materials, into high value use.

Used for small scale entities such as off-road applications, small power installations such as the one developed by the Moscow State Engineering University, consists of two active units, the gas generator and the internal-combustion engine. The device's greatest feature? It is converting materials of little use into power generating gas at minimum losses. With such a conversion ratio, there really wouldn't be any "wastes" left for further processing, and certainly minimal emissions to harm the environment.