Synthetic fuels, often called synfuels, are man-made fuels created from various sources, including natural gas, coal, or biomass. They are designed to mimic the properties of conventional fossil fuels, making them suitable for use in existing engines and infrastructure. These fuels can help reduce greenhouse gas emissions by utilizing carbon capture technologies or renewable energy sources in their production. As a result, synthetic fuels are considered a potential alternative to traditional petroleum products, contributing to a more sustainable energy future while maintaining compatibility with current fuel systems.