The provided pie charts illustrate the distribution of energy consumption in an average Australian household alongside the corresponding greenhouse gas emissions resulting from this energy utilization.
Overall, it is evident that heating dominates energy use but contributes relatively less to greenhouse gas emissions, in contrast to water heating. Despite being the second highest energy consumer, water heating is the leading source of emissions.
In terms of energy consumption, heating accounts for 42% of the energy consumed by an Australian household, making it the most substantial figure in the chart. Water heating follows at 30%. In contrast, other appliances consume only 15% of the total energy, while refrigeration, lighting, and cooling account for 7%, 4%, and 2%, respectively.
Further analysis has revealed that water heating contributes 32% of the total amount of greenhouse gas emissions. Energy used by other appliances generates 28% of the emissions. By comparison, the percentages for heating, refrigeration, and lighting are 15%, 14%, and 8%, respectively. Cooling, on the other hand, contributes just 3% to the overall greenhouse gas emissions.