NOVELTY - Producing greenhouse gas reduced fuels from biomass, comprises conducting at least 5%, preferably at least 85%, of the produced biogas in a system module performing biogas scrubbing/carbon dioxide (CO2) separation/CO2 recuperation, separating and collecting of the CO2 content of the biogas, temporarily storing the recuperated regenerative CO2 in gaseous state e.g. in at least one non-pressurized container, reforming into methane or methanol or substituting fossil CO2, and mixing the resulting greenhouse gas reduced biomethane with natural gas to a greenhouse gas reduced mixed gas.    USE - The method is useful for producing greenhouse gas reduced fuels, preferably biomethanol and biomethane. The biomethanol in pure or mixed form is used as a fuel or its component, preferably in traffic (all claimed).    ADVANTAGE - The process produces the fuels in an environmentally friendly manner i.e. the fuels are free of total mercury pollution.    DETAILED DESCRIPTION - Producing greenhouse gas reduced fuels from biomass by the process of anaerobic bacterial fermentation in a biogas plant with at least one fermenter and at least one system module for biogas scrubbing/carbon dioxide (CO2)-separation/CO2-recuperation, comprises conducting at least 5%, preferably at least 85%, of the produced biogas in the system module performing biogas scrubbing/CO2 separation/CO2 recuperation, separating and collecting of the CO2 content of the biogas of at least 5%, preferably at least 85%, temporarily storing the recuperated regenerative CO2 in the gaseous state in at least one non-pressurized container or in at least one pressure vessel or in liquid form in at least one fluid tank, or in solid form in at least one thermally insulated container or room, or injecting the recuperated regenerative CO2 without intermediate storage in a gas- or liquid-gas line, sequestering (geologically storing) the recuperated regenerative CO2 in the subsequent use of at least 5%, preferably at least 95% or reforming into methane or methanol or substituting fossil CO2, where the greenhouse gas pollution of the resulting biomethane calculated in accordance with a European Union (EU)-directive of renewable energy directive (RED) 2009/28/EG of 23, April 2009, or biogas residues enriched with biomethane falls below the life cycle assessment (LCA)-value of 100 g CO2-equivalent/kWh biomethane, and mixing the resulting greenhouse gas reduced biomethane or enriched with biomethane, greenhouse gas reduced residual biogas, preferably with natural gas to a greenhouse gas reduced mixed gas, preferably such that the energy content of the biomethane or biogas enriched with biomethane in the mixed gas is more than 4% or the mixed gas reaches an LCA value of less than 75 g CO2-equivalent/kWh, preferably so that the energy content of the biomethane or biogas enriched with biomethane in the mixed gas is more than 30%, or the mixed gas reaches an LCA-value of less than 5 g CO2-equivalent/kWh. An INDEPENDENT CLAIM is included for a biogas plant for the production of greenhouse gas reduced fuels from biomass, comprising at least one fermenter and at least one system module, which is connected with at least one associated fermenters for processing biogas to biomethane.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic block diagram of the process steps for the production of biogas (Drawing includes non-English language text).