HYDRAULICS In particular the IPCC report identified that urgently tackling emissions of methane is a cost-effective and rapid way of helping to reduce the future effects of climate change. However, given this emphasis on the need for rapid action, it is disappointing that the deployment of anaerobic digestion (AD) around the world falls far short of capacity. Both the UN Environment Programme (UNEP) and Climate & Clean Air Coalition (CCAC) and the International Energy Agency (IEA) have recognised that AD is ‘a readily available low-cost technology that can help reduce these emissions.’ However, despite some positive developments, such as the European Union’s Methane Strategy, AD and its potential to mitigate methane emissions, deliver clean renewable gas and sustainable organic biofertiliser is seriously overlooked by many policymakers. Immediate solution In the wake of the latest IPCC report Charlotte Morton, chief executive of the World Biogas Association, warns: “Research from the WBA and other biogas trade bodies… has demonstrated our industry’s potential to deliver a huge reduction in global GHG emissions, especially methane, within the next few Anaerobic digestion ‘dangerously overlooked’ 30 HYDRAULICS & PNEUMATICS October 2021 www.hpmag.co.uk In August this year, the Inter-Governmental Panel on Climate Change (IPCC) published its sixth assessment report on climate change which painted an alarming picture of the global effects of climate change and the need for immediate action to reduce the impact of greenhouse gas (GHG) emissions on the environment. Matt Hale, international sales & marketing director, HRS Heat Exchangers, looks at the details. HRS agrees that the potential of anaerobic digestion to help mitigate climate change must not be overlooked by policy makers. The HRS Digestate Pasteurisation System (DPS) can produce energy savings of 70% compared with other technologies.