The Morality-Effectiveness Disconnect of Pro-environmental Behaviors

Not all pro-environmental behaviors are created equal—some are vastly more effective at mitigating climate change than others. Do people judge more effective behaviors as proportionally morally superior? This matters because moral cognition and motivation are powerful drivers of prosocial behavior. Four studies (N = 5,336; three pre-registered) reveal a robust morality-effectiveness disconnect: Behaviors that rank better on objective climate mitigation potential rank worse on individual moral judgments. Exploratory analyses revealed that this disconnect is mediated by stronger personal support for less effective behaviors, and is weaker among individuals more interested in learning about environmental impacts. Study 3, a five-country experiment, reveals that explicitly labeling behaviors' impact reduces the disconnect by 75%, but does not eliminate it. Study 4 finds that providing detailed information reverses the disconnect, leading people to judge more effective behaviors as proportionally more moral and increase their policy support relative. Theoretical and practical implications are discussed.