Biofuels aren't all good.

Advantages

Biofuel advocates frequently point out the advantages of these plant- and animal-based fuels, such as: 

Cost: Once the technology is widely available, biofuels can be significantly less expensive than gasoline and other fossil fuels, particularly as worldwide demand for oil increases, therefore increasing oil and gasoline prices to unheard of levels. 

Source Material: Whereas oil is a limited resource that comes from specific materials, biofuels can be manufactured from a wide range of materials including crop waste, manure, and other byproducts, making it a efficient step in recycling. 

Renewability: It takes thousands of years for fossil fuels to be produced, but biofuels are much more easily renewable as new crops are grown and waste material is collected. 

Security: By reducing dependence on foreign fuel sources, countries can protect the integrity of their energy resources and make them safe from outside influences. 

Economic Stimulation: Because biofuels are produced locally, biofuel manufacturing plants can employ hundreds or thousands of workers, creating new jobs in rural areas. Biofuel production will also increase the demand for suitable biofuel crops, providing economic stimulation to the agriculture industry. 

Biodegradability: Biofuels are easily biodegradable and far safer to handle than traditional fuels, making spills less hazardous and much easier and less expensive to clean up. 

Lower Carbon Emissions: When biofuels are burned, they produce significantly less carbon output and fewer toxins, making them a safer alternative to preserve atmospheric quality and lower air pollution.

Disadvantages

Despite the many positive characteristics of biofuels, there are also many disadvantages to these energy sources.

Energy Output: Biofuels have a lower energy output than traditional fuels and therefore require greater quantities to be consumed in order to produce the same energy level.