Australian's 'win' when it comes to the amount of garbage produced

From the Business Insider site in their list of the '10 things you need to know today' (here).

Australian's now have the dubious distinction of being the biggest producers of garbage per capita in the World. We have already used up our allocated share of 'garbage dumping' for the year (based on an average of the last five years of garbage produced) and we are barely half way through the year. We have also overtaken the USA with our consumption footprint. If everyone in the World had a consumption footprint the size of Australia then the World's population would need 5.4 Earths in order to exist.