The overuse of the resources causes many hazards such as environmental pollution greenhouse gases. On account of this, the fossil-fuel reserves get reduced and there comes a noticeable socioeconomic change. The reduction of natural resources, emissions and cost reductions create interest in renewable energy resources such as the sun, wind, biomass, waves, rain, the tide and geothermal. The growing trend of natural gas consumption and increased emissions of these fuels in the cities examine the potential of biogas production.

renewable energy, biogas, natural gas, emission factor.