a Umfasst Emissionen aus dem Verbrauch fester, flüssiger und gasförmiger Brennstoffe, der Zementherstellung und der Gasabfackelung (United States Department of Energy, Carbon Dioxide Information Analysis Center).
a Includes emissions from solid fuel consumption, liquid fuel consumption, gas fuel consumption, cement production and gas flaring (United States Department of Energy, Carbon Dioxide Information Analysis Center).