1 Statistics in Action New Zealand’s Greenhouse Gas Inventory Sonia Petrie – Ministry for the Environment, New Zealand

Overview Inventory requirements New Zealand’s national inventory system Emissions profile Current activity data Future data needs

National greenhouse gas inventories Reporting emissions and removals across six sectors Annual inventory submission due 15 April –Strict deadline –Use common reporting format software and tables –Use IPCC guidelines and good practice guidance

IPCC good practice principles Transparency Accuracy Completeness Consistency Comparability

National System National systems under Article 5 of Kyoto Protocol –Mandatory –Ensure capacity for timely performance –Quality management including continuous improvement

New Zealand’s National System Ministry for the Environment - national entity with overall responsibility –Climate Change Response Act (2002, revised 2008) –National greenhouse gas inventories since mid 1990s –Procedures for changes in methods and emission factors –Distributed system

7 UNFCCC Secretariat MfE MED EnergyIP / SolventsWaste LULUCF Agriculture MEDMfE Stats NZ MED Consult MEDConsultStats NZ MfEConsultMfEMAF Stats NZ Consult International Inventory Compiler National Inventory Compiler CRF Data Input Sector Sectoral Expertise Data Sources MAF Institutional and procedural arrangements for the compilation of New Zealand’s annual inventory MAF

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New Zealand - growth in sectors

New Zealand - growth in gases

Activity Data Energy Liquid fuels: Delivery of Petroleum Fuels Survey Solid fuels: Coal Sales Survey Gaseous fuels: Gas fields to gas users Biomass: Industry users Industrial Processes Direct from industry – voluntary reporting Transparency versus confidentiality

Activity Data Solid Waste Periodic surveys on waste quantity & composition National landfill census (2006/07) and audit (2002)

Activity Data Land use, land use change and forestry Present: –National Exotic Forest Description Survey –Land cover databases –Research science important for establishing emission factors Future: –Land use and carbon analysis system (LUCAS)

Kyoto Forest Plot Sites

16 Example of 1 ha Land Use Mapping, from 1990 Landsat imagery

17 Activity Data Agriculture Statistics New Zealand agricultural production census/surveys Productivity data from government and industry Combining accurate official statistics and research science critical for agriculture sector

Agriculture Model

Future data requirements Disaggregated data –Regional level ? –Farm type ? –Paddock scale ? Capturing mitigation technologies –Example: nitrification inhibitors

Disaggregation by region MethaneNitrous oxide

21 Colours on the map represent differing application dates - enabling real time recording of each application of eco-n.

Key Messages Voluntary reporting and official statistics backed up by legislation Good national picture of emissions Creating a time series of data is critical for climate change reporting Challenge in obtaining data at disaggregated level to capture mitigation