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  • Wood fuel

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    Wood burning A stack of split firewood in Japan Pile of wood pelletsWood fuel (or fuelwood) is a fuel, such as firewood, charcoal, chips, sheets, pellets, and sawdust. The particular form used depends upon factors such as source, quantity, quality and application. In many areas, wood is the most easily available form of fuel, requiring no tools in the case of picking up dead wood, or few tools, although as in any industry, specialized tools, such as skidders and hydraulic wood splitters, have been developed to mechanize production. Sawmill waste and construction industry by-products also include various forms of lumber tailings. The discovery of how to make fire for the purpose of burning wood is regarded as one of humanity's most important advances. The use of wood as a fuel source for heating is much older than civilization and is assumed to have been used by Neanderthals. Today, burning of wood is the largest use of energy derived from a solid fuel biomass. Wood fuel can be used for cooking and heating, and occasionally for fueling steam engines and steam turbines that generate electricity.

  • Wood economy

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    The existence of a wood economy, or more broadly, a forest economy (since in many countries a bamboo economy predominates), is a prominent matter in many developing countries as well as in many other nations with temperate climate and especially in those with low temperatures. These are generally the countries with greater forested areas. The uses of wood in furniture, buildings, bridges, and as a source of energy are widely known. Additionally, wood from trees and bushes, can be employed in a wide variety, including those produced from wood pulp, as cellulose in paper, celluloid in early photographic film, cellophane, and rayon (a substitute for silk). At the end of their normal usage, wood products can be burnt to obtain thermal energy, or can be used as a fertilizer. The potential environmental damage that a wood economy could occasion include (problems of reduction the biodiversity due to monoculture forestry—the intensive cultivation of very few types of trees); and CO2 emissions. However, forests can aid in reduction of atmospheric carbon dioxide and therefore decrease global warming.

  • Firewood

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    Stack of firewood next to a building Stack of split firewood and a maul for splitting, Czech RepublicFirewood is any wooden material that is gathered and used for fuel. Generally, firewood is not highly processed and is in some sort of recognizable log or branch form, compared to other forms of wood fuel like pellets or chips. Firewood can be seasoned (dry) or unseasoned (fresh/wet). It is generally classified as hardwood or softwood. Firewood is a renewable resource. However, demand for this fuel can outpace its ability to regenerate on a local or regional level. Good forestry practices and improvements in devices that use firewood can improve local wood supplies.

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