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  • New greenhouse gas inventory data for Australia released

    The Australian Government has released the December 2024 Quarterly Update of Australia's National Greenhouse Gas Inventory and submitted the 2023 National Inventory Report to the United Nations Framework Convention on Climate Change (UNFCCC).

    The December 2024 Quarterly Update provides an account of national emissions up to the end of December 2024 and preliminary national emissions up to the end of March 2025. The quarterly update finds that Australia's emissions in the year to December 2024 are 27% lower than emissions in the year to June 2005, the base year for Australia's 2030 Paris Agreement target.

    The level of emissions in the year to December 2024 was 446 million tonnes of carbon dioxide equivalent (Mt CO2-e), essentially the same level as for the previous 12 months.

    Emissions from the agricultural and the industrial sectors were lower, with a fall in crop production, lower production of steel, some emissions reductions in chemicals manufacturing and lower use of refrigerant gases. Emissions from the transport and electricity sectors increased due to higher diesel consumption, an increase in domestic aviation activity and a fall in generation of hydroelectricity leading to increases in other forms of electricity generation, including coal and gas. There was a decrease in emissions from the stationary energy sector due to less coal consumption from metal manufacturing and less residential gas use.

    The preliminary estimate of national emissions for the year to the March quarter 2025 is 442 Mt CO2-e, a decline of 1.2% on the prior 12 months.

    Commentary on the new data noted the significant role played by the land sector in the reduction in Australia's net emissions since 2005, and uncertainties in the measurement of fugitive emissions from coal and gas extraction. Other reporting noted that while levels of renewable energy generation had increased since 2023, carbon emissions from the electricity sector had increased overall. This was due to lower wind production and drought in Tasmania leading to lower hydro-electricity generation.

    The National Inventory Report details Australia's national greenhouse gas emissions from the financial year 1989-90 to 2022-23 and fulfils Australia's reporting obligations under the Paris Agreement. The inventory report finds that Australia's net greenhouse gas emissions were 453 Mt CO2-e in 2022-23. This is a decrease of around 26% from 2004-05 levels.