2014
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About this document
The Australian & Global Emissions of Ozone Depleting Substances report was produced by CSIRO on behalf of the Department of the Environment. It details estimates of Australian emissions of thirty key ozone depleting substances (ODSs) between 2005-2012 based on data collected at Cape Grim, Tasmania using the AGAGE Medusa (GC-MS) and GC-ECD data.
The report found that as a result of measures undertaken within the Montreal Protocol framework ODP-weighted total Australian ODS emissions fell by 13% per year from 1995 (9700 tonnes) to 2005 (2400 tonnes), followed by a period of much slower decline in emissions since 2005 (2% per year).
GWP-weighted total Australian ODS emissions fell by about 10% per year from 56 M tonnes CO2-e in 1995 to 10 M tonnes CO2-e in 2012. Of the 46 M tonnes decline, 42 M tonnes (90%) were due to declining CFC emissions.
In Australia (as elsewhere) the Montreal Protocol has been very effective in controlling the consumption of ODSs that cause stratospheric ozone depletion and, in addition, has significantly slowed the increase in GHG emissions that drive climate change.
Global emissions of the major Montreal Protocol ODSs continue to decline – CFC emissions declined by 15% from 2012 to 2013, halons by 7%, and HCFCs by 1%.