NOVELTY - Method and system involves removing carbon black from hydrocarbon fuel and harvesting the remaining hydrogen.    USE - For removing carbon black from hydrocarbon fuel and harvesting the remaining hydrogen; for modulating hydrocarbon and/or carbohydrate feedstock inputs to the Plasma Syngas Gasifier, in order to control the amount of carbon dioxide in the Carbon Flow Loop; for removing carbon black from hydrocarbon feedstock to increase the removal of landfill sewage or other waste; and for continuously monitoring and regulating carbon dioxide emissions to atmosphere while generating electrical power and/or harvesting hydrogen gas (all claimed).    ADVANTAGE - The method and system are an efficient and practical ways of cleaning up toxic waste and other refuse; reduce our dependency on petroleum oil by using landfills and other waste streams as a recoverable energy source; effectively remove carbon black from hydrocarbon fuel and harvest the remaining hydrogen; effectively modulate hydrocarbon and/or carbohydrate feedstock inputs to the Plasma Syngas Gasifier, in order to control the amount of carbon dioxide in the Carbon Flow Loop; effectively remove carbon black from hydrocarbon feedstock to increase the removal of landfill sewage or other waste; and continuously monitor and regulate carbon dioxide emissions to atmosphere while generating electrical power and/or harvest hydrogen gas.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a method and system involving modulating hydrocarbon and/or carbohydrate feedstock inputs to the Plasma Syngas Gasifier, in order to control the amount of carbon dioxide in the Carbon Flow Loop;    (2) method and system involving removing carbon black from hydrocarbon feedstock to increase the removal of landfill sewage or other waste; and    (3) method and system, involving continuously monitoring and regulating carbon dioxide emissions to atmosphere while generating electrical power and/or harvesting hydrogen gas.