The two pie charts demonstrate the energy consumption in an average Australian household and the greenhouse emissions due to this energy use. In general, it is clearly evident that the highest energy consumption is due to heating, whereas the highest greenhouse gas emission is as a result of water heating.
Heating made up the largest proportion of household energy consumption (42%), whilst its effect on the greenhouse gas emission was only 15 percent. Heating water requires as much as 30 percent of the total energy expenditure, which had almost similar effect towards air pollution in the form of harmful gas emissions.
The rest of household energy expenditures were accountable for the refrigeration, lighting, cooling, and other appliances, totaling 28 percent. In contrast, such minority cases result in a significant proportion of hazardous gas discharge. Each of these minor cases in the energy consumption result in as much as more than half of the total greenhouse gas emissions