 Lignin is a complex polymer found in the cell walls of plants, which can be used to produce biofuels. Two main methods exist for converting lignin into fuel, thermochemical and catalytic. Thermochemical processes involve heating lignin with steam or other solvents to break down the polymers and release sugars, which can then be fermented into ethanol. Catalytic processes use enzymes to break down lignin into smaller molecules, which can then be converted into hydrocarbons. Both methods have the potential to reduce dependence on fossil fuels and reduce greenhouse gas emissions. However, further research is required to optimize the production of lignin-based fuels and assess their environmental impact. This article was authored by Angon Kokodurk to Fon Salon, Orhan Oslik and others.