Taking the European Union (EU) as a case study, we simulate the application of non-uniform national mitigation targets to achieve a sectoral reduction in agricultural non-carbon dioxide (CO₂) greenhouse gas (GHG) emissions. Scenario results show substantial impacts on EU agricultural production, in particular, the livestock sector. Significant increases in imports and decreases in exports result in rather moderate domestic consumption impacts but induce production increases in non-EU countries that are associated with considerable emission leakage effects. The results underline four major challenges for the general integration of agriculture into national and global climate change mitigation policy frameworks and strategies, as they strengthen requests for (1) a targeted but flexible implementation of mitigation obligations at national and global level and (2) the need for a wider consideration of technological mitigation options. The results also indicate that a globally effective reduction in agricultural emissions requires (3) multilateral commitments for agriculture to limit emission leakage and may have to (4) consider options that tackle the reduction in GHG emissions from the consumption side.

中文翻译：

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将农业纳入减缓气候变化政策框架的主要挑战。

以欧盟（EU）为例，我们模拟了应用非均匀国家减排目标以实现农业非二氧化碳（CO ₂）的温室气体排放量。情景结果表明，这对欧盟的农业生产，尤其是畜牧业产生了重大影响。进口量的显着增加和出口量的减少对国内消费产生了相当程度的影响，但在非欧盟国家中却导致了产量的增加，这与排放泄漏的影响有关。结果强调了将农业普遍纳入国家和全球减缓气候变化政策框架和战略的四个主要挑战，因为这些挑战加强了对以下方面的要求：（1）在国家和全球层面有针对性但灵活地实施缓解义务；（2）需要更广泛地考虑技术缓解方案。