Category Archives: Biofuels for Road Transport

Biogenic CO2 Emissions

The production of transport biofuels can be accompanied by changes in carbon se­questration. Firstly, there can be changes in the carbon content of ecosystems. There may be both losses from, and increases of, C in the ecosystem, which in turn will change atmospheric CO2 concentrations. In early life cycle assessments, quantifica­tion of such changes was largely neglected (with some exceptions, […]

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Loss of Biodiversity and Its Impact on Natural Resources Which Have Monetary Value

Living nature is an important supplier of natural resources which have monetary value, such as fuel, materials (e. g. rubber, aloe gel, wax, tannins, wood, thatch and broom grass), food, medicines and ornamental plants (Carr et al. 1993; Brown and Rosendo 2000; Brennan et al. 2005; Mutimukuru et al. 2006; Shackleton et al. 2007). Poor people, especially, often depend directly […]

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Biofuel Varieties

There are a variety of ways to use biofuels for transport. The first category focuses on electric traction, which currently accounts for about 1% of energy use in the transportation sector worldwide (de la Rue du Can and Price 2008). Electric trac­tion is common in train transport, but there are also ships powered by electricity, and a battery-powered small airplane […]

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Nutrients

Another factor important in productivity is the availability of sufficient mineral nutrients, such as fixed nitrogen (N), phosphorus (P), sulphur (S), potassium (K), calcium (Ca) and magnesium (Mg). As to the indefinite availability of sufficient nutrients, difficulties may well emerge (Manley and Richardson 1995; Sims and Riddell-Black 1998; Perry 1998; Ranger and Turpault 1999; Pare et al. 2002). These partly […]

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How to Use Natural Resources for Biofuel Production in a Sustainable Way?

In this book, ‘sustainable’ is taken to mean that a practice can be continued in­definitely. As explained in Chaps. 2 and 3, this severely limits the extent to which geochemically scarce resources which have been formed in slow geological pro­cesses, such as fossil fuels and phosphate ore, can be converted into wastes. Sus­tainability also requires that renewable resources such as […]

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