The solution to the challenges that society currently faces, for example climate change and global pollution, requires the understanding of the linkages between these problems. One of these linkages relates changes in climate conditions to consumption of bottled water, which constitutes a source of plastic pollution worldwide. Using information from the labour and households' environmental behaviour surveys and climate records of Ecuador, a geographically fragmented country, we determine how climate conditions affect the decision to consume bottled water and the volume consumed. We methodologically address the problem of selection when households make decisions about this type of consumption, and find that climate variables are important to explain whether and how much bottled water households consume. The temperature-elasticity of the demand for bottled water ranges from inelastic to elastic depending on the model specification. An increase of 1 °C in average temperature is associated, on average, with an increase of almost one-fifth of a water bottle. Temperature increases the consumption of bottled water even more in rural areas and among occupations exposed to climate conditions.

解决社会当前面临的挑战，例如气候变化和全球污染，需要了解这些问题之间的联系。这些联系之一是气候条件的变化与瓶装水的消耗有关，而瓶装水是全世界塑料污染的来源。利用来自劳动力和家庭环境行为调查的信息以及厄瓜多尔这个地理分散的国家的气候记录，我们可以确定气候条件如何影响饮用瓶装水的决定和消耗量。我们从方法上解决了家庭做出此类消费决策时的选择问题，并且发现气候变量对于解释家庭是否饮用瓶装水以及饮用多少水很重要。瓶装水的温度弹性取决于模型规格，从无弹性到有弹性。平均温度每升高1°C，大约增加一瓶水的五分之一。在农村地区以及暴露于气候条件的职业中，温度甚至增加了瓶装水的消耗量。