Cement Industry & Emissions
Our industry remains committed to working with all levels of government in the development and application of climate and energy policy that strives to reduce greenhouse gas equivalent emissions in line with our international commitments, while at the same time ensuring the long-term viability of Australia’s cement industry and the communities in which they operate.
The Australian cement industry recognises the challenge that a changing climate poses to our natural environment, both at a regional and global scale, and supports efforts to reduce emissions.
Strong action already taken by the Australian cement industry has resulted in significant reductions in carbon emissions from our sector – with a reduction in total emissions of over 20 per cent since 2010-11.
The manufacture of Portland cement involves the conversion of limestone into clinker. This chemical process generates carbon dioxide and is the main source of greenhouse gas emissions from the cement production process.
Process emissions accounted for around 60 per cent of the industry’s GHG emissions in 2018-19. Approximately 30 per cent of emissions resulted from the burning of fuels such as coal, gas and diesel to generate heat for the process, and the remaining 10 per cent generated from the consumption of electricity across the facilities.
Total emissions from the integrated production of clinker and cement were 5.1 million tonnes CO2-e in 2018-19. This represents a 2 per cent increase over 2017-18 levels .
The emissions intensity of cement manufacturing expressed in terms of total cement produced from clinker produced on site was 0.77 t CO2-e in 2018-19 – an improvement of around 3 per cent over 2017-18 levels and a 17 per cent reduction over 2010-11.