Australia's National Greenhouse Gas Inventory: June Quarter 2011

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Quarterly Update

Australia’s National Greenhouse Accounts are made up of a series of comprehensive reports and databases that estimate, and account for, Australia’s greenhouse gas emissions. These publications fulfil Australia’s international and domestic inventory reporting requirements. The Quarterly Update of Australia’s National Greenhouse Gas Inventory reports on the latest estimates of Australia’s national greenhouse gas inventory.

Key data

The National Inventory has increased in the June quarter with trend emissions rising by 0.5%. This growth is primarily attributed to an increase in emissions from stationary energy (other than electricity generation), transport and fugitive emissions (from coal mining).

The lift in emissions in the June quarter follows a year of relatively weak emission levels. Emissions for the year to June 2011 were 0.4% lower than the previous year reflecting, in particular, a decrease in fugitive emissions from black coal mining and a change in generation sources for electricity.

Annual electricity generation from coal fell 5% compared with the previous year, whereas natural gas generation increased 13% and hydroelectric generation grew 24%. A record wet spring in 2010 followed by the second wettest Australian summer on record1 contributed to increased availability of hydroelectric resources.

The lift in emissions in the June quarter 2011 is evident in Figure 1 with trend emissions increasing by 0.5%. The Figure also shows the long term growth in emissions as well as the effect of recent temporary factors such as the global financial crisis in 2008-09 and the effects of temporary climatic factors in 2010-11.

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