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The Quarterly Update of Australia’s National Greenhouse Gas Inventory reports on the latest greenhouse gas emissions.

This update provides estimates of:

  • national emissions up to the September quarter of 2020
  • emissions from the National Electricity Market up to the December quarter 2020

 

Annual emissions data

This interactive graph shows annual emissions by year from September 1990 to September 2020.

You can select data by sector, and see changes in emissions over several years. Mouse over and click to view emissions for any year.


Source: Department of Industry, Science, Energy and Resources (2021)

Quarterly emissions data

This interactive graph shows emissions by quarter from September 1999 to September 2020.

You can select data by sector. Mouse over and click to view seasonally adjusted and trend emissions for any quarter.


Source: Department of Industry, Science, Energy and Resources (2021)

Data insights

Emissions for the year to September 2020 are estimated to be 510.1 Mt CO2-e. This is down 4.4% or 23.3 Mt CO2-e on the previous year.

Lower emissions this year reflect:

  • ongoing reductions in emissions from electricity (down 4%)
  • significant reductions in fugitive emissions (down 7.3%)
  • effects of COVID-19 restrictions on emissions from transport (which fell 10.2%)
  • lagged effects of last year’s drought on agriculture (a 2.5% decline)

In the year to September 2020, emissions per capita and the emissions intensity of the economy were at their lowest levels in 30 years. Emissions per capita were lower than 1990 by 46.2%, while the emissions intensity of the economy was 65.6% lower than in 1990.

Increasing economic activity is flowing through to transport emissions. These rose during the quarter, together with emissions from agricultural production as the effects of drought eased.

Overall, emissions in the September quarter fell 1% in trend terms but rose 1.7% on a seasonally adjusted and weather normalised basis. 

Australia’s emissions have declined 21.7% since the peak in the year to June 2007. The year to September emissions were 8.1% below emissions for the year to June in 2000. They were 19% below emissions in the year to June 2005 (the baseline year for the Paris Agreement).

Understanding the data

We compiled this report in line with emissions estimation rules countries adopted under the Paris Agreement.

Australia’s National Greenhouse Gas Accounts take into account the latest scientific evidence. We fulfil our international treaty commitments by submitting annual National Inventory Reports to the United Nations Framework Convention on Climate Change (UNFCCC). A UNFCCC expert team reviews them each year for transparency, accuracy, completeness, comparability and consistency.

Download the full report and data

Quarterly Update of Australia’s National Greenhouse Gas Inventory: September 2020 [4MB PDF]

[4.5MB DOCX]

Data sources [6.52MB XLSX]

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