Rhetoric around climate change often calls on us to think of future generations: if we don’t suffer the effects, then our children and our children’s children will. For some, this sense of obligation could be motivating. But for others, the distant time frame may be a barrier to truly grappling with the issue. Now, a new study in Personality and Social Psychology Bulletin suggests one method to get people thinking about their duty to future generations is to think about the past. In their new paper, Hanne Watkins from the University of Massachusetts and Geoffrey Goodwin from the University of Pennsylvania suggest that reflecting on the actions of previous generations could cause a greater sense of “intergenerational reciprocity”: thinking about past sacrifices, in other words, could make us more likely to make sacrifices ourselves. At the moment, they argue, key decision makers are faced with a dilemma: their own interests conflict with the interests of future generations. Working out how to increase this intergenerational reciprocity, therefore, could be an important way to influence positive policymaking. To view the full article visit Big Think.