Mass consumption of bottled water is contributing to a multitude of environmental problems, including water wastage, pollution, and climate change. The aim of this study is to advance a social-psychological understanding of how to effectively reduce bottled water consumption. An online survey experiment was conducted among students of a Dutch public university to explore outcome beliefs about drinking less bottled water while testing three strategies for behavioral change. Respondents (N = 454) were randomly allocated to four different conditions (an information-only, social norm-only, a combination of both, or a control group). It was hypothesized that the combination (i.e., norm-induced information provision) would be most persuasive and elicit the greatest reduction in intentions to buy bottled water. Results were consistent with this hypothesis. Findings also show that while beliefs about health, taste, water quality, lifestyle, the environment, and perceived alternatives are all correlated with bottled water consumption, belief strength varies significantly based on rate of consumption.
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