Social and environmental analysis of food waste abatement via the peer-to-peer sharing economy
Social and environmental analysis of food waste abatement via the peer-to-peer sharing economy
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DOI：
10.1038/s41467-020-14899-5
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发表时间：
2020-03-10
影响因子：
16.6
通讯作者：
Chertow, Marian
中科院分区：
文献类型：
--
作者：
Makov, Tamar;Shepon, Alon;Chertow, Marian
减少食物浪费被广泛认为是提高资源效率和满足不断增长的人口营养需求的关键。在这里，我们探讨共享经济是否可以以相对低影响和环保的方式为减少食物浪费提供有意义的帮助。通过分析一个流行的点对点食物共享应用程序上的17万个帖子，我们发现在19个月的时间里，有90吨相当于零售价值70万英镑的食物垃圾被二次消费者收集并转移。一项针对大伦敦的环境分析表明，这些交易所避免了87- 156吨二氧化碳当量的排放。我们的研究结果表明，大多数交流是在与低收入但教育水平较高的用户之间。这些发现，加上高收集率（平均60%），表明共享经济可能为提高资源效率和减少食物浪费提供强有力的手段。
Reducing food waste is widely recognized as critical for improving resource efficiency and meeting the nutritional demand of a growing human population. Here we explore whether the sharing economy can provide meaningful assistance to reducing food waste in a relatively low-impact and environmentally-sound way. Analyzing 170,000 postings on a popular peerto-peer food-sharing app, we find that over 19 months, 90t of food waste with an equivalent retail value of 0.7 pound million were collected by secondary consumers and diverted from disposal. An environmental analysis focused on Greater London reveals that these exchanges were responsible for avoiding emission of 87-156t of CO(2)eq. Our results indicate that most exchanges were among users associated with lower income yet higher levels of education. These findings, together with the high collection rates (60% on average) suggest that the sharing economy may offer powerful means for improving resource efficiency and reducing food waste.