NOVELTY - Reducing carbon footprint of a conversion process (200) involves a) conducting an external carbon negative process having biomass as input (100) and sequesterable carbon and one or both of renewable energy (175) and renewable feedstock as outputs, and b) utilizing renewable energy to at least partly power the conversion process and/or utilizing renewable feedstock as input to conversion process.    USE - For reducing carbon footprint of a conversion process (where the conversion process includes at least one of electricity production, electrochemical reduction process, smelting, fossil fuel extraction, chemical refining and chemical conversion processes) (claimed).    ADVANTAGE - The method allows carbon footprint reduction of greater than 1% (preferably greater than 10%). The method reduces the carbon footprint of any conversion process via the introduction of at least one external carbon negative process which uses renewable inputs. Even with the addition of external energy, selection of appropriate energy inputs and recycling of the various outputs of the carbon negative process back into the process also results in a carbon negative process. The output of several of carbon negative processes serve as input to the conversion process; and the carbon negative process causes the conversion process to qualify for renewable identification number (RINs).    DETAILED DESCRIPTION - Reducing carbon footprint of a conversion process (200) involves a) conducting an external carbon negative process having biomass as input (100) and sequesterable carbon and one or both of renewable energy (175) and renewable feedstock as outputs, and b) utilizing renewable energy to at least partly power the conversion process and/or utilizing renewable feedstock as input to conversion process. The renewable energy is at least one selected from: heat (240), combustible biovapors, combustible fuels (210) and electricity (230). The electricity is produced by combustion of combustible biovapors and/or renewable fuels obtained as output from the carbon negative process. The sequesterable carbon is sequestered by use as a soil amendment, sequestered by underground storage, or by addition to soil containing compost material. The sequesterable carbon is used for carbon offsets; or is used for carbon credits. At least some of the sequesterable carbon is reacted with oxygen, carbon dioxide, methane or steam to generate synthesis gas, which displaces fossil carbon. At least one of the combustible fuels, refinery stock or chemicals (220) is certified as carbon negative. An INDEPENDENT CLAIM is included for a system for reducing the carbon footprint of a conversion process comprising a) an external carbon negative system having biomass as input and sequesterable carbon and renewable energy and/or renewable feedstock as outputs to the conversion process; and b) a conversion process directly coupled to the external carbon negative system for receiving at least one of renewable energy as power in conversion process and renewable feedstock as input to conversion process.    DESCRIPTION OF DRAWING(S) - The figure shows a flow diagram of the carbon positive conversion process which takes an input and converts it into at least one of combustible fuels, chemicals, electricity or heat energy.    Carbon positive production module (50)    Input (100)    Energy; (175)    Conversion process (200)    Combustible fuels (210)    Chemicals (220)    Electricity (230)    Heat energy (240)