Korea CC and official stats conf-Statistics in Action

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Statistics in Action New Zealands Greenhouse
Gas Inventory Sonia Petrie Ministry for the
Environment, New Zealand
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Overview

• Inventory requirements
• New Zealands national inventory system
• Emissions profile
• Current activity data
• Future data needs

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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

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IPCC good practice principles

• Transparency
• Accuracy
• Completeness
• Consistency
• Comparability

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National System

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

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New Zealands 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

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Institutional and procedural arrangements for the
compilation of New Zealands annual inventory
UNFCCC Secretariat
International Inventory Compiler
MfE
National Inventory Compiler
CRF Data Input
MfE
MED
Energy
IP / Solvents
Waste
LULUCF
Agriculture
Sector
Sectoral Expertise
MED
MfE
MfE
MfE
MAF
MAF
Stats NZ
MED
MED
Consult
Stats NZ
MfE
Consult
MfE
MAF
MAF
Stats NZ
Consult
Data Sources
Consult
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New Zealand - growth in sectors
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New Zealand - growth in gases
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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

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Activity Data

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

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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)

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Kyoto Forest Plot Sites
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Example of 1 ha Land Use Mapping, from 1990
Landsat imagery
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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

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Agriculture Model
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Future data requirements

• Disaggregated data
• Regional level ?
• Farm type ?
• Paddock scale ?
• Capturing mitigation technologies
• Example nitrification inhibitors

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Disaggregation by region
Methane
Nitrous oxide
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Colours on the map represent differing
application dates - enabling real time recording
of each application of eco-n.
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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