Limiting global temperature increases to below 1.5 °C requires reductions in Short-Lived Climate Pollutants (SLCPs), like methane, black carbon, and hydrofluorocarbons (HFCs), which is rarely reflected in targets within Nationally Determined Contributions (NDCs). Colombia’s 2020 NDC is explored as a case study for how Governments can integrate SLCP mitigation targets into climate change commitments. Methane and HFC mitigation contribute approximately 9% of Colombia’s GHG reduction commitment, and a separate target is included to reduce black carbon emissions by 40% by 2030 compared to 2014 levels. These targets are shown to be ambitious, due to the inclusion of a new black carbon target, realistic due to the identification of mitigation measures to achieve them, and additional to CO₂ mitigation. Analysis of the planning process establishing these targets emphasises the importance of long-term planning to obtain agreement between coordinating institutions and implementing institutions on the utility of SLCP targets, and capacity-building within national institutions.

中文翻译：

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制定雄心勃勃且现实的目标，以减少国家自主贡献中的短期气候污染物排放：哥伦比亚案例研究

将全球气温升高限制在 1.5 °C 以下需要减少甲烷、黑碳和氢氟碳化物 (HFC) 等短期气候污染物 (SLCP)，而这很少反映在国家自主贡献 (NDC) 的目标中。哥伦比亚 2020 年国家自主贡献作为案例研究探讨了政府如何将 SLCP 缓解目标纳入气候变化承诺。甲烷和氢氟碳化合物减排贡献了哥伦比亚温室气体减排承诺的约 9%，其中还包括一个单独的目标，即到 2030 年将黑碳排放量与 2014 年的水平相比减少 40%。这些目标被证明是雄心勃勃的，由于纳入了新的黑碳目标，实际的由于确定了实现这些目标的缓解措施，以及额外的CO ₂减排。对制定这些目标的规划过程的分析强调了长期规划的重要性，以便协调机构和实施机构就 SLCP 目标的效用以及国家机构内的能力建设达成一致。