Source:Auckland Council Research and Evaluation Unit, RIMU
The Auckland Plan, adopted in 2012, lays out aspirational targets to achieve reductions in greenhouse gas (GHG) emissions, 10 to 20 per cent by 2020, 40 per cent by 2040 and 50 per cent by 2050 (based on 1990 levels). Auckland’s Low Carbon Action Plan, launched in 2014, sets out the pathways and specific actions to achieve the target. An inventory that identifies and quantifies the sources and sinks of GHGs in Auckland provides an essential tool to inform and evaluate our progress.
Auckland’s GHG inventory to 2015 was prepared with the most up-to-date information and in accordance with global best practice: the Global Protocol for Community-Scale Greenhouse Gas Emission Inventories (GPC) which was published in 2014. In 2015, Auckland’s gross emissions were 11,309 kilo-tonnes of carbon dioxide equivalent (kt CO2e) and when carbon sequestration from forestry was included, net emissions were 10,267 kt CO2e. Transport and stationary energy are dominant sectors, accounting for 39.7 per cent and 29.5 per cent of gross emissions, respectively (Figure E-1). Of the GHGs required to be reported by the GPC, carbon dioxide (CO2) contributed 83.1 per cent, methane (CH4) 10.5 per cent, nitrous oxide (N2O) 1.7 per cent, hydrofluorocarbons (HFCs) 4.6 per cent, perfluorocarbons (PFCs) <0.1 per cent and sulphur hexafluoride (SF6) 0.1 per cent of gross emissions. Nitrogen trifluoride (NF3) emissions do not occur in New Zealand.
Auckland Council technical report, TR2017/026