CCAP农经前沿讲座系列第152期
Climate change aggravates the overconsumption of added sugar in the United States especially in disadvantaged groups
报 告 人：何盼 讲师、博导（卡迪夫大学）
报告时间：2024年7月24日 星期三 10:00-12:00
报告地点：北京大学王克桢楼508会议室
报告人简介
何盼，卡迪夫大学讲师、博导。本科、硕士毕业于南京大学，博士毕业于马里兰大学并曾在清华大学地学系开展博士后研究工作。研究兴趣包括探索人类行为的环境影响、食物及能源可持续消费、环境政策分析。相关研究曾获国家自然科学基金委青年科学基金、博士后面上基金，以及英国Vice-Chancellor Global Challenges Research Fellowship的资助, 担任Sustainable Production and Consumption青年编辑，Journal of Environmental Management associate editor。曾在Nature Sustainability, Nature Energy, Nature Food, Nature Communications, Journal of Policy Analysis and Management等期刊发表论文20余篇。
报告内容
Climate change with increasingly frequent extreme heat may affect consumption of beverage and frozen desserts, and thus add to health and economic burden as the leading factor for premature death in the United States. However, the magnitude of such impact is rarely quantified. This study quantifies the relationship between temperature and added sugar consumption in U.S. households from 2004 to 2019 using individual transaction-level data. We find that the overall added sugar consumption is positively related to temperature, notably within 12°C-30°C at a rate of 0.74 g per °C. This increase is primarily driven by the higher consumption of sugar-sweetened beverages and frozen desserts. Further analysis reveals that the temperature-dependent rise in sugar consumption has larger magnitudes among households with lower income or lower educational levels. Our projections indicate a substantial nationwide increase in added sugar consumption by 3.25 g/day by the year 2095 (or equivalently 5°C warming level), with the most vulnerable groups at an even higher risk based on global warming trajectories. This research highlights the critical need for cross-sectoral policies to adapt to climate change and mitigate health risks from over-intake of added sugar.
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