The four pie graphs give information about how much electricity was generated from five different fuel sources in Australia and France in 1980 and 2000.
In 1980, Australia’s total electricity output was 100 units, with 80 units being derived from three fossil fuels: coal, oil and natural gas. The remaining electricity requirement (20 units) was offset by a renewable resource (hydro power). Similarly, France, in that same year, met most of its energy needs from fossil fuels (20 units from oil, and 25 units a piece from coal and natural gas). However, unlike Australia, a significant amount (15 units) was generated from nuclear power. Hydro power made up only 5 units of electricity.
By 2000, Australia’s electricity output from coal-fired power stations had grown dramatically to 130 units (over 75% of the nation’s total energy). Likewise, hydro power plants had almost doubled their output to 36 units. Oil and natural gas had fallen 2 units each. France’s output from coal-fired power plants was unchanged at 25 units. Oil had increased slightly to 25 units. Meanwhile, natural gas and hydro had shrunk to 2 units each, while nuclear power had become the dominant source at 126 units.