Fuels are the raw materials responsible for energy production. They are divided into two categories: fossils – originated from the decomposition of organic waste: oil, coal, natural gas, waste – and biofuels – produced from biomass, a more sustainable alternative compared to fossil fuels.
Biofuels are renewable energy sources that can be of animal origin – using pig fat or chicken for biodiesel production, for example – or vegetable – babassu, beetroot, sugarcane, corn, soybeans, among other crops, and from them bioethanol is produced, and biomass that generates energy.
Like fossil fuels, biofuels also generate CO2 from their combustion, but the difference that makes them more sustainable is in their production: because they are fuels that originate from vegetables, for their manufacture is Planting or in Natura plant extractivism is necessary. Thus, there is compensation for gases emitted in the production.