The pie charts compare how household energy is used in Australia and the proportion of greenhouse gas produced in each use.
Overall, heating and cooling account for largest share of green house gas emissions, while energy consumption is more evenly distributed among different kinds of household activities. In contrast, emissions of greenhouse gas is not proportional to the energy used.
In terms of energy usage, other appliances represent the biggest share at 24%, closely follwed by water heating at 23% and heating and cooling at 20%. Refrigeration and lighting account for 12% and 11% respectively, while cooking and standby power are the smallest users, each at 5%.
By contrast, heating and cooling produce a disproportionately high 38% of greenhouse gas emissions, despite using only one-fifth of household energy. Water heating is the second-largest contributor at 25%, slightly higher than its energy usage figure. Other appliances, however, generate only 16% of emissions, significantly lower than their energy consumption. Refrigeration and lighting each produce 7%, while cooking and standby power generate the least emissions at 4% and 3% respectively.