14 - Carbon emissions reduction assessment via biogas production and resource recovery: the IPCC methodology

Abstract

This chapter looks into the assessment of carbon emissions reductions from biogas production and resource recovery, employing the robust Intergovernmental Panel on Climate Change methodology. Through guidelines, calculation methods, and tiered approaches, stakeholders can evaluate biogas initiatives’ environmental impacts and sustainability implications. Key metrics such as carbon dioxide equivalent and global warming potential provide a comprehensive framework for quantifying emissions reductions and identifying areas for improvement. The displacement of fossil fuels, nutrient recycling, soil carbon impacts, and lifecycle assessments of digestate uses are crucial in evaluating broader environmental benefits. The case study of New Horizons Energy’s biogas plant in Cape Town exemplifies the significant potential of biogas projects in reducing carbon emissions, promoting sustainable waste management, and supporting the transition to a low-carbon economy. This research contributes to climate change mitigation strategies, aligns with international agreements and sustainable development goals, and emphasizes the pivotal role of biogas initiatives in achieving environmental sustainability.