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Wealth of nations and energy consumption Wealth of nations and energy consumption
To date, energy use and economic growth have been closely linked. As figure shows, there is a linear relationship between energy consumption and wealth as measured in the Gross Domestic Product (GDP) of nations.
01 Oct 2012 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Green jobs Green jobs
If properly planned and managed, biofuels can contribute to a number of policy objectives which support the development of the green economy. For example, because agriculture is labour-intensive, job opportunities can be found throughout the biofuel value chain, particularly where conversion from feedstock to biofuel occurs close to where the feedstock is produced. The additional income from new jobs is likely to have a multiplier effect wh...
01 Mar 2012 - by Nieves Lopez Izquierdo
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The enlarged biofuels family The enlarged biofuels family
Figure illustrates the various feedstocks, which can be converted to biofuels for transport. However, this represents only part of the larger bioenergy family, which covers liquid, solid and gaseous biofuels for different uses, including electricity production, and the traditional biomass for energy use.
01 Mar 2012 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Savings in greenhouse gas emissions by fuel type Savings in greenhouse gas emissions by fuel type
Biofuels, in the use phase, emit the carbon that has been previously absorbed during plant growth. Inputs during cultivation and conversion need to be accounted for. However, the bulk of GHG emissions are related to land-use change. The carbon footprint varies considerably depending on the type of land converted, the type and yield of the feedstock (tonnes per hectare), as this figure shows. It is therefore key that any GHG analysis takes ...
01 Mar 2012 - by Nieves Lopez Izquierdo
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Technical and sustainable biomass supply potentials and expected demand for biomass in 2050 (primary energy) Technical and sustainable biomass supply potentials and expected demand for biomass in 2050 (primary energy)
Technical and sustainable biomass supply potentials and expected demand for biomass in 2050 (primary energy).
01 Mar 2012 - by Nieves Lopez Izquierdo
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Biofuel Production Biofuel Production
The plants grown for biofuel production absorb CO2 from the atmosphere and combustion of the biofuel releases only the CO2 previously absorbed by the plant.
01 Oct 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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