Biomass energy

For articles on specific fuels used in vehicles, see Biogas, Bioethanol, Biobutanol,  Biodiesel, and Straight vegetable oil. Biofuel (also called agrofuel) can be broadly defined as solid, liquid, or gas fuel consisting of, or derived from biomass. The definition used here is narrower: biofuel is defined as liquid or gas transportation fuel derived from biomass. Biomass can also be used directly for heating or power: this is commonly called biomass fuel: see biomass heating systems. Biofuel is considered a means of reducing greenhouse gas emissions and increasing energy security by providing an alternative to fossil fuels.
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Energy produced by combusting biomass materials such as wood. The carbon dioxide emitted from burning biomass will not increase total atmospheric carbon dioxide if this consumption is done on a sustainable basis (i.e., if in a given period of time, regrowth of biomass takes up as much carbon dioxide as is released from biomass combustion). Biomass energy is often suggested as a replacement for fossil fuel combustion. See biomass.