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Reducing the environmental impact of global diets

机译：减少全球饮食对环境的影响

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摘要

It is well established in the literature that reducing the amount of meat in global diets would reduce the environmental impacts of food production. However, changes to livestock production systems also have significant potential to reduce environmental impacts from meat production, and yet are not as widely discussed in the literature. Modern, intensive livestock systems, especially for beef, offer substantially lower land requirements and greenhouse gas emissions per kilogram of meat than traditional, extensive ones. The land sparing potential of beef sector intensification is especially relevant for high priority conservation regions like the Brazilian Amazon. Leveraging livestock production systems in addition to dietary change greatly expands the opportunity to achieve conservation and climate goals in the coming decades.
机译：在文献中已充分确定的是，减少全球饮食中的肉量将减少食品生产对环境的影响。但是，改变牲畜生产系统在减少肉类生产对环境的影响方面也具有巨大潜力，但在文献中并未得到广泛讨论。现代的集约化畜牧系统，特别是牛肉，与传统的广泛集约系统相比，每公斤肉的土地需求和温室气体排放量大大降低。牛肉部门集约化的节约土地潜力与巴西亚马逊等高度优先保护区特别相关。除饮食变化外，还利用牲畜生产系统极大地扩展了在未来几十年内实现保护和气候目标的机会。

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