The conversion of a fossil fuel-based economy into a bio-based economy will probably be restricted in the European Union by the limited supply of ecologically sustainable biomass. It appears realistic that, for the EU, the sustainable biomass supply will be enough to meet about 10 per cent of the final energy and feedstock consumption in 2030. Under optimistic assumptions, this supply might increase to 20 per cent. These are the main findings of a quick-scan analysis carried out by the PBL Netherlands Environmental Assessment Agency and CE Delft.
EU Member States already aim to apply an amount of biomass in 2020 that already approaches this 10 per cent. Therefore, from a sustainability perspective, there is an urgent need to guarantee ecologically sustainable biomass production.
In considering sustainable biomass production, land use is the most critical issue, especially the indirect land-use impacts on greenhouse gas emissions and biodiversity. The use of waste resources and agricultural and forestry residues, that does not involve additional land use, therefore, would be a sustainable option. Technically, it is possible to use these types of resources for most applications in a bio-based economy, but it seems unlikely that, by 2030, they will contribute more than three to four per cent to the final energy and feedstock consumption in Europe.
Three priorities can be distinguished in the transition to an ecologically sustainable bio-based economy that aims to reduce the consumption of fossil fuels:
* develop new technologies, procedures and infrastructure to collect or to produce more biomass without using directly or indirectly valuable natural land;
* develop technologies to produce hydrocarbons from types of biomass that have potentially the highest sustainable supply, and stimulate the application of these hydrocarbons in sectors of the economy where no or very few fossil-free alternatives exist;
* develop a system of criteria, certification schemes and enforcement for all types of biomass that aims to reduce the impact of direct and indirect land use on greenhouse gas emissions and biodiversity, to extend the current EU system that is restricted to the direct impacts of transport biofuels.
The full report can be downloaded from pbl.nl.
Source: Recylingportal, 2012-02-16.