Bioenergy for reducing greenhouse-gas emissions

Bioenergy, based on renewable biomass, can play a significant role in mitigation of greenhouse gas (GHG) emissions. The International Energy Agency Bioenergy Task 38 'Greenhouse Gas Balances of Biomass and Bioenergy Systems' is an international collaborative network that develops methodologies for assessing GHG balances of bioenergy systems. Countries participating in Task 38 are: Austria, Australia, Canada, Denmark, Finland, Ireland, The Netherlands, New Zealand, Norway, Sweden and the USA. The Task has developed computer models and case studies for the assessment of GHG balances of bioenergy systems compared with fossil energy systems. A major objective is to aid decision-makers in selecting the most effective options to limit emissions or enhance removals of greenhouse gases. Exchange of models, ideas and experience is facilitated through regular workshops. Position papers and joint publications on the role of bioenergy and carbon sinks in greenhouse gas mitigation have been prepared. For example, Task 38 has produced a 'Frequently Asked Questions' paper on bioenergy, carbon sinks and global climate change. The Task also contributes to the work of the Intergovernmental Panel on Climate Change, to clarify the biomass (sinks) provisions of the Kyoto Protocol.