The understanding, prediction, and encouragement of pro-environmental behaviour (i.e., behaviour that impacts the environment as little as possible) depend to a large extent on understanding the motivational dynamics of pro-environmental behaviour. In this review paper, we discuss the state of the art with regard to these dynamics. We explain the importance of three types of goals underlying behaviour: the hedonic goal to feel good, the gain goal to enhance one's resources, and the normative goal to act appropriately. The strength of these goals differs across situation, which affects which aspects in the situation people attend to, how they evaluate these aspects, and which choices they make. We describe factors affecting the strength of g...