New Zealand's Greenhouse Gas Inventory

New Zealand's Greenhouse Gas Inventory is the official annual estimate of all human-generated greenhouse gas emissions and removals that have occurred in New Zealand since 1990. This page links to the latest findings.

Links to inventory publications (released April 2019) and emissions tracker

Key findings of the inventory

  • New Zealand’s gross greenhouse gas emissions in 2017 were 80.9 million tonnes of carbon dioxide equivalent (Mt CO2-e). Compared to 1990, this is a 23.1 per cent increase in emissions.
  • Between 2016 and 2017, gross emissions increased by 2.2 per cent. This was mainly from an increase in emissions from road transport and fossil fuel generated electricity production.
  • The agriculture and energy sectors were the two sectors with the largest contributions to New Zealand’s gross emissions, at 48.1 per cent and 40.7 per cent respectively (see graph below).
  • The Land Use, Land-Use Change and Forestry (LULUCF) sector offset nearly one third of New Zealand’s gross emissions (see graph below).
  • New Zealand's net emissions increased by 64.9 per cent compared with 1990 due to the:
    • underlying increase in gross emissions
    • increased volume of timber harvested from New Zealand's plantation forest estate in 2017 
  • In 2017 Tokelau was included as part of New Zealand’s emissions profile for the first time. The emissions contribution from Tokelau on the New Zealand’s gross emissions profile was minimal (0.004 per cent).

New Zealand’s emissions profile in 2017

How much each sector contributed to our greenhouse gas emissions

New Zealand's emissions profile 2017

Note: Net emissions from this sector are expressed as a negative number because the Land Use, Land-Use Change and Forestry (LULUCF) sector removes more carbon dioxide than it emits.