Australia's daily carbon dioxide (CO2) emission. Illustration showing the actual amount of greenhouse gases emitted per day by Australia as measured in the equivalent (e) volume of CO2 gas. The volume forms a sphere 1149 metres in diameter, equivalent to 1.5 million tonnes. Australia, with a relatively small population, has a very large per-capita CO2-equivalent emission figure (see image C026/0526). This view shows Sydney Harbour Bridge and Sydney Opera House. The CO2 is shown occupying the volume it would fill at standard pressure and 15 degrees Celsius. The volume is around 794 million cubic metres. These figures are from 2013.