Why Biogas from Anaerobic Digestion?
Environmental drivers The link between rising atmospheric greenhouse gas concentrations and global climate change is now widely accepted by scientific and political establishment (e.g. IPCC reports, 20011) Leading arguments have been publicly well rehearsed, and the urgent need to stabilise concentrations of greenhouse gases released to the atmosphere through human activity, is becoming increasingly accepted. It has been proposed by many respected luminaries that climate change, and the mitigation of it, is one of the great challenges facing the human race in the early decades of the new millennium, perhaps the greatest2. Socio-economic drivers The leading socio-economic driver for renewable energy solutions, and until recently, the leading barrier to their widespread deployment, is the global value of crude oil. This has in past decades averaged a sufficiently low level that it served as a severe disincentive to the development of more expensive bioenergy options. However, if the high
