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Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels such ...
Biodiesel is produced from the oils in for instance rapeseed or sugar beets and is the most common biofuel in Europe. [citation needed] Second-generation biofuels (also called "advanced biofuels") utilize non-food-based biomass sources such as perennial energy crops and agricultural residues/waste.
Biofuels can also mean land that could have produced food is instead being used for energy. And they can add to deforestation when land is cleared for their production.
Biomass (in the context of energy generation) is matter from recently living (but now dead) organisms which is used for bioenergy production. There are variations in how such biomass for energy is defined, e.g. only from plants, [8] or from plants and algae, [9] or from plants and animals. [10]
As researchers discover new ways to engineer plants for biofuel production, the variety of biomasses continues to grow.
Better Than Corn? Algae Set to Beat Out Other Biofuel Feedstocks (Worldwatch Institute). The End of Cheap Food. (Cover Story). 2007 Economist 385(8558):11–12. Energy Policy Act of 2005. 2005 Public Law 109-58. Pimentel, David. 2009 Corn Ethanol as Energy. Harvard International Review 31(2):50–52. Scully, Vaughan. 2007 Effects of the Biofuel ...
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Biofuels are primarily used in transportation, providing 3.5% of the world's transport energy demand in 2022, [109] up from 2.7% in 2010. [110] Biojet is expected to be important for short-term reduction of carbon dioxide emissions from long-haul flights.