改变大学活动的默认餐饮选择,以减少对环境的有害影响:六项随机对照试验
Angela W Zhang1, Christopher Wharton2, Sara Cloonan3
1University of Southern California, United States.
Appetite
|June 22, 2024
概括
将植物性食作为默认选项显著增加了他们的选择. 这种在大学活动中的可持续饮食改变干预措施减少了对环境的影响,包括二氧化碳排放和土地利用.
科学领域:
- 环境科学 环境科学
- 行为科学 行为科学
- 可持续的粮食系统 可持续的粮食系统
背景情况:
- 畜牧业对温室气体排放和环境退化做出了重大贡献.
- 转移饮食模式远离动物产品对于可持续性至关重要.
- 突击干预,如默认选项,显示出影响饮食选择的前景.
研究的目的:
- 评估使植物性餐饮成为在大学活动中促进可持续饮食变革的默认选择的有效性.
- 量化与采用植物性默认标准相关的环境影响减少.
主要方法:
- 在四个机构的六个大学活动中进行了一项随机对照试验.
- 与会者收到了RSVP表格,默认选项是以植物为基础或以肉为基础的餐.
- 分析了饮食选择,以确定默认设置的影响.
主要成果:
- 当它是默认选项时,观察到植物性食选择增加了43个百分点.
- 干预表明了在不同事件和机构的普遍性.
- 据估计,二氧化碳排放 (104,387公斤),土地利用 (299.9平方米), (959.0克) 和 (259.5克) 的显著减少.
结论:
- 实施植物性默认是促进大学环境中可持续饮食选择的有效策略.
- 这种干预导致与食品消费相关的环境影响大幅减少.
- 广泛采用以植物为基础的默认可以大大促进大学的可持续发展目标.
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