The National Pollutant Inventory (NPI) provides the framework for the development and establishment of the NPI, which is an internet database designed to provide publicly available information on the types, and amounts of certain substances, being emitted to the air, land, and water.
With respect to waste biomass, the solid waste industry believes that the combustion of waste biomass should be viewed as carbon neutral. That is, CO2 emissions from the combustion of waste biomass should not be viewed as contributing in any way to climate change. These CO2 emissions from waste biomass are part of the near term carbon cycle and when diverted from traditional waste management methods are a source of biomass combustion for energy that do not generate anthropogenic CO2 emissions. Rather, emissions from these sources should be viewed as an extension of the near term carbon cycle and not subject to inclusion in caps. Further, waste biomass to energy should be eligible to generate offset credits due to the displacement of fossil fuel energy production. Sources of carbon neutral waste biomass include landfill and sewage digester gas, biomass to energy facilities, that portion of waste-to-energy combustion that processes biomass, anaerobic digestion, and the thermo-chemical conversion of waste biomass to fuel or energy.