The two pie charts illustrate the distribution of energy usage, varied across six different activities in an Australian household, and the greenhouse gas emissions this generates.
Overall, there is not a consistent relationship between energy consumption and emissions. Although heating consumes the most energy, water heating is responsible for the highest percentage of greenhouse gas emissions.
Regarding energy consumption, heating and water heating take the lead, at 42% and 30%, respectively. In contrast, activities such as refrigeration, lighting and cooling report considerably lower energy consumption, ranging from 2% to 7%. Other household appliances contribute 15% to the overall energy usage.
In terms of emmisions, water heating stands out as the primary source, contributing to 32% of greenhouse gas emissions. Following closely, other appliances and heating are responsible for 28% and 15% of emissions. Standing at 14% and 8%, refrigeration and lightning generate a relatively high number of emissions, despite their lower energy consumption. Cooling homes registers the lowest emissions at 3%.