The aim of this unit is to introduce the idea that the discussion of controversial issues relating to the conduct and application of science involves making decisions. In any situation, there is usually more than one choice available. Often, a course of action may seem like a good solution, but it may also have some undesirable outcomes.

Students consider the ethical questions that arise from the conflict between the increasing use of energy and the need to reduce energy consumption and the use of fossil fuels.

The activity in this unit would be suitable after students have completed work on fossil fuels, generating electricity, energy or climate change. The approach in the activity could be used for other topics, for example the use of plastics (bags) or waste disposal and recycling.