NOVELTY - Producing biofuel of the third generation based on waste products from the animal feed manufacturing, comprises providing 60% starch for the conversion of feed grain, in addition to the desired proteins, converting the starch in various steps to 99.9% ethanol, providing the proteins, which are important for the cattle mast and trace elements and other constituents of the grain in the course of the fermentation and terminating the distillation of the conversion process, where the farmland (10) for the raw materials is not in competition with agricultural areas of food production.    USE - The method is useful for producing biofuel of the third generation based on waste products from the animal feed manufacturing.    ADVANTAGE - The method produces biofuel consistently with the production of food and increases the production of fruits and vegetables.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) compressed carbon dioxide introduced for fumigation in greenhouses (1), and to increase fruit and vegetable yields, where the carbon dioxide stored in the grain is released, compressed and liquefied and used in concentrated form in greenhouses for the enrichment of carbon dioxide content in the ambient air. An increased proportion of carbon dioxide in the atmosphere increases the greenhouse crop yields by up to 40%;    (2) concentrated feed for cattle mast comprising proteins and trace elements, which are removed from the feed grain from the distillation of the conversion. The waste straw from the grain harvest are processed optimally together with the proteins and trace elements by converting to concentrates according to the needs and requirements of beef cattle;    (3) integrated cattle mast or slaughter, which saves energy by eliminating long transport distances, time and cost are provided. The cattle provide meat in addition, important raw materials in the form of litter and manure along with the offal of slaughterhouses (7), which are converted into biogas in the biogas plant;    (4) a biogas combined heat and power plant (8) produces the complete energy (steam, heat, electricity) required for the conversion of all waste, the excess slurry, the slurry from the cattle mast and slaughter waste from the greenhouses, slaughterhouse and the cattle farm. The biogas combined heat and power plant does not require the fossil energy. The unused current is fed into the respective mains on the basis of the German renewable energy act; and    (5) a humus fertilizer (9) comprising the fermentation residues from the biogas plant, and the harmful nitrogen contents introduced in the form of cow manure into biogas are removed, and thus the humus fertilizer is used as fertilizer (organic fertilizer) for all crops and re-naturalization of brown-fields. The application of commercial nitrogen, phosphorus, and potassium fertilizer can be dispensed with farmland.    DESCRIPTION OF DRAWING(S) - The figures 1 and 2 show a schematic process flow of the method for producing biofuel of the third generation.    Greenhouses (1)    Slaughterhouses (7)    Biogas combined heat and power plant (8)    Humus fertilizer (9)    Farmland (10)