Calculation of external climate costs for food highlights inadequate pricing of animal products.
Calculation of external climate costs for food highlights inadequate pricing of animal products.
复制标题
对食品外部气候成本的计算凸显了动物产品定价不足。
DOI：
10.1038/s41467-020-19474-6
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发表时间：
2020-12-15
影响因子：
16.6
通讯作者：
Gaugler T
中科院分区：
文献类型：
--
作者：
Pieper M;Michalke A;Gaugler T
虽然农业部门是全球温室气体的主要排放者，但尚未对环境和社会外部因素进行彻底的经济分析。评估农业外部成本的现有研究没有区分耕作制度和粮食类别。本文建立了一种解决这一科学差距的方法，并在德国的背景下应用。利用生命周期评估和元分析方法，我们计算粮食的外部气候成本。结果显示，传统和有机动物产品的外部温室气体成本最高（2.41欧元/公斤产品;生产者价格水平的146%和71%附加费），其次是传统乳制品（0.24欧元/公斤产品; 91%附加费），有机植物产品最低（0.02欧元/公斤产品; 6%附加费）。粮食类别之间相对外部气候成本的巨大差异以及农业部门的绝对外部气候成本意味着迫切需要采取政策措施，缩小当前市场价格与粮食真实成本之间的差距。农业温室气体排放不仅加剧了全球气候危机，而且造成了目前粮食价格无法解释的损害。在这里，作者展示了对食品类别和生产系统的内部气候成本的价格计算，揭示了强烈的市场扭曲。
Although the agricultural sector is globally a main emitter of greenhouse gases, thorough economic analysis of environmental and social externalities has not yet been conducted. Available research assessing agricultural external costs lacks a differentiation between farming systems and food categories. A method addressing this scientific gap is established in this paper and applied in the context of Germany. Using life-cycle assessment and meta-analytical approaches, we calculate the external climate costs of foodstuff. Results show that external greenhouse gas costs are highest for conventional and organic animal-based products (2.41€/kg product; 146% and 71% surcharge on producer price level), followed by conventional dairy products (0.24€/kg product; 91% surcharge) and lowest for organic plant-based products (0.02€/kg product; 6% surcharge). The large difference of relative external climate costs between food categories as well as the absolute external climate costs of the agricultural sector imply the urgency for policy measures that close the gap between current market prices and the true costs of food. Agricultural greenhouse gas emissions not only amplify the global climate crisis, but cause damage currently unaccounted for by food prices. Here the authors show the calculation of prices with internalized climate costs for food categories and production systems, revealing strong market distortions.
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影响因子：
3.1
作者：
Cole, CV;Duxbury, J;Zhao, Q
通讯作者：
Zhao, Q
影响因子：
12.7
作者：
Andreyeva, Tatiana;Long, Michael W.;Brownell, Kelly D.
通讯作者：
Brownell, Kelly D.
影响因子：
--
作者：
Cooper, J. M.;Butler, G.;Leifert, C.
通讯作者：
Leifert, C.
影响因子：
7.3
作者：
Aguilera, Eduardo;Guzman, Gloria;Alonso, Antonio
通讯作者：
Alonso, Antonio
影响因子：
7.3
作者：
Aguilera, Eduardo;Guzman, Gloria;Alonso, Antonio
通讯作者：
Alonso, Antonio