U.S. energy-related CO2 emissions by sector 2019-2050

Projections are based on a Reference scenario.
*By convention, the direct emissions from biogenic energy sources are excluded from energy-related CO2 emissions. The release of carbon from these sources is assumed to be balanced by the uptake of carbon when the feedstock is grown, resulting in zero net emissions over some period of time. If, however, increased use of biomass energy results in a decline in terrestrial carbon stocks, a net positive release of carbon may occur. Accordingly, the emissions from biogenic energy sources are reported here as an indication of the potential net release of carbon dioxide in the absence of offsetting sequestration.