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Biofuels are organic fuels that can replace gasoline and diesel. They are fuels extracted from agro-energy. They can be produced from organic substances such as agricultural raw materials, biomass, wood or algae.
Biofuels are considered a renewable resource, as their production is essentially based on factors and raw materials capable of regenerating and reproducing in a short time.

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The main ones are the following:
-Occupation and agricultural production.
Biofuel creates a productive and employment boost in the national agricultural sector, since it adds a demand for "energy" purposes of agricultural products to the traditional agri-food demand.
- Lower environmental impact. Their natural origin is more easily reabsorbed by nature and makes it possible to reduce greenhouse gas emissions from private transport by 70% and reduce the import of oil from abroad.

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The disadvantages of the biofuel must also be assessed in the cost-benefit analysis.
- Rising food prices. First generation biofuels are produced from agricultural raw materials and use land as a factor. Agro-energies reduce the amount of land destined for the production of food and increase the yields of fertile soils.
-Deforestation. To cultivate new land for energy purposes, forests are often destroyed in developing countries. Deforestation reduces the ability of our planet to absorb CO2, thus worsening the greenhouse effect and global warming.

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In the transport sector it is used as a biofuel to replace diesel in vehicles with a diesel engine designed to use it. In general it can also be used as a green fuel for home heating. More frequently, biodiesel is blended with diesel to improve some properties. In the latter case it can be used without having to modify the vehicle's heating system or diesel engine.

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Biodiesel is an alternative fuel of plant origin. It is a biological substitute for diesel. From this derives the name biodiesel (Bio + Diesel). It is a glycerin-free vegetable oil to which methanol is added. It occurs as a liquid fuel, semi-transparent in color and a viscosity similar to traditional diesel.Lower environmental impact. Biodiesel has a lower environmental impact than traditional fossil fuels, because it is a fuel of biological origin and is biodegradable in the environment.

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ADVANTAGES:
- Renewable energy that efficiently exploits natural resources.
- Reduces dependence on fossil fuels and thir producers.
- Continuity to supply.
- Eco-sustanable resource.
- Refostation.
DISADVANTAGES:
- It may not be completely clean when burned.
- Lack of space for coltivation.
- Deformation.
- Cost of the process.

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A clean energy source that reduces dependence on fossil fuels, biomass is the organic matter generated by plants and animals specially treated to be used as biofuel in power plants. Firewood residues, waste from agri-food industry processing, urban organic waste, green branches from forestry and agricultural activities, marine algae and farm waste and waste are the materials of organic-vegetable origin from which energy is produced. When biomasses are burned, they release heat and emit a quantity of carbon dioxide similar to that emitted in nature during an ordinary photosynthesis process. Here is a short guide to learn more about this green energy, to know its many pros and to understand where Italy is in the production of bioenergy.

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Organic waste from animals and waste from agricultural products, if subjected to fermentation, produce biogas. In this process, called biogasification, the anaerobiotic bacteria transform the sewage into gas; excellent fertilizers are obtained as a residue.
Biogas is a gaseous compound made up of methane, fuel, which can therefore be used to produce energy.
Biogas plants are useful as an alternative energy source, especially in agricultural areas of developing countries.