经济,社会和环境溢出效应减少了全球饮食转变带来的好处
Alessandro Gatto1, Marijke Kuiper2, Hans van Meijl3
1Department of Agricultural Economics and Rural Policy, Wageningen University and Wageningen Economic Research, Wageningen, The Netherlands. alessandro.gatto@wur.nl.
Nature food
|June 5, 2023
概括
采用像EAT-Lancet饮食这样的可持续饮食减少了粮食需求,生物质生产和土地使用. 然而,它可以降低低收入家庭的粮食负担能力,并增加整个经济的温室气体排放,这是由于非食品支出.
科学领域:
- 环境科学环境科学
- 农业经济学 农业经济学
- 全球可持续性研究研究.
背景情况:
- 饮食转变对于可持续的食品系统至关重要.
- 评估间接的经济,社会和环境影响至关重要.
研究的目的:
- 为了研究EAT-Lancet饮食的好处.
- 分析整个经济中的社会,经济和环境溢出影响.
- 通过全球供应链追踪物理生物质量量.
主要方法:
- 使用全球经济模型.
- 在供应链中追踪生物质的物理量.
- 分析了饮食转变对各种经济和环境因素的影响.
主要成果:
- 全球粮食需求减少减少了生物质生产,价格,贸易,土地利用和粮食损失/浪费.
- 在撒哈拉以南非洲的低收入农业家庭和非农业家庭中,粮食负担能力下降.
- 对非食品行业的经济溢出影响限制了环境收益;整个经济的温室气体排放量增加.
结论:
- 可持续饮食的复杂经济和环境后果超出了食品部门.
- 政策干预必须考虑弱势群体的负担能力和非食品部门的影响.
- 实现可持续性需要一个整体的方法,考虑到整个经济的影响.
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