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Environmental Impacts and Hotspots of Food Losses: Value Chain Analysis of Swiss Food Consumption
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2017-09-20 00:00:00 , DOI: 10.1021/acs.est.6b06179 Claudio Beretta 1 , Matthias Stucki 2 , Stefanie Hellweg 1
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2017-09-20 00:00:00 , DOI: 10.1021/acs.est.6b06179 Claudio Beretta 1 , Matthias Stucki 2 , Stefanie Hellweg 1
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Reducing food losses and waste is crucial to making our food system more efficient and sustainable. This is the first paper that quantifies the environmental impacts of food waste by distinguishing the various stages of the food value chain, 33 food categories that represent the whole food basket in Switzerland, and including food waste treatment. Environmental impacts are expressed in terms of climate change and biodiversity impacts due to water and land use. Climate change impacts of food waste are highest for fresh vegetables, due to the large amounts wasted, while the specific impact per kg is largest for beef. Biodiversity impacts are mainly caused by cocoa and coffee (16% of total) and by beef (12%). Food waste at the end of the food value chain (households and food services) causes almost 60% of the total climate impacts of food waste, because of the large quantities lost at this stage and the higher accumulated impacts per kg of product. The net environmental benefits from food waste treatment are only 5–10% of the impacts from production and supply of the wasted food. Thus, avoiding food waste should be a first-line priority, while optimizing the method of treatment is less relevant.
中文翻译：
粮食损失对环境的影响和热点：瑞士粮食消费的价值链分析
减少粮食损失和浪费对于使我们的粮食系统更加有效和可持续发展至关重要。这是第一篇通过区分食品价值链的各个阶段，代表瑞士整个食品篮子的33种食品类别（包括食品废物处理）来量化食品废物对环境的影响的论文。环境影响以气候变化和水和土地使用对生物多样性的影响来表示。食物浪费对气候变化的影响最大，因为浪费了很多新鲜蔬菜，而每公斤的具体影响最大的是牛肉。生物多样性影响主要是由可可和咖啡（占总量的16％）和牛肉（占12％）引起的。食物价值链末端的食物垃圾（家庭和食物服务）几乎占了食物垃圾对气候的总影响的60％，因为在此阶段大量损失，并且每公斤产品的累积影响更大。食物垃圾处理带来的净环境收益仅为浪费食物的生产和供应影响的5-10％。因此，避免食物浪费应该是第一要务，而优化治疗方法则没有多大意义。
更新日期：2017-09-20
中文翻译：
粮食损失对环境的影响和热点：瑞士粮食消费的价值链分析
减少粮食损失和浪费对于使我们的粮食系统更加有效和可持续发展至关重要。这是第一篇通过区分食品价值链的各个阶段，代表瑞士整个食品篮子的33种食品类别（包括食品废物处理）来量化食品废物对环境的影响的论文。环境影响以气候变化和水和土地使用对生物多样性的影响来表示。食物浪费对气候变化的影响最大，因为浪费了很多新鲜蔬菜，而每公斤的具体影响最大的是牛肉。生物多样性影响主要是由可可和咖啡（占总量的16％）和牛肉（占12％）引起的。食物价值链末端的食物垃圾（家庭和食物服务）几乎占了食物垃圾对气候的总影响的60％，因为在此阶段大量损失，并且每公斤产品的累积影响更大。食物垃圾处理带来的净环境收益仅为浪费食物的生产和供应影响的5-10％。因此，避免食物浪费应该是第一要务，而优化治疗方法则没有多大意义。
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