The Nature of Science 41.4 Meeting our energy needs
Fig. 11 shows how the world’s energy demands are met. Most of the energy that we use is pro- duced from fossil fuels. The way we produce energy for electricity, heating and transport has an impact on the
environment and society. The following case studies explore the impact of using oil, nuclear energy and wind farms to meet our energy needs.
20 15 Oil 10 5 0 1970 1980
1990 Year
2000 2010 Fig. 11 The world’s energy consumption. TWh is an energy consumption unit.
