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Local Greenhouse Gas Emissions in Southwestern Kansas

机译：堪萨斯州西南部的局部温室气体排放

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Recent international agreements for controlling emissions of greenhouse gases have focused the attention of both the climate research and policy communities on strategies for reducing the production and emission of these radiatively active substances. Most approaches have adopted a "top down" perspective, where mitigation strategies are framed at the level of national governments. However, emissions occur at local, rather than national scales. We describe a study aimed at documenting greenhouse gas emissions from a local area in the High Plains of southwestern Kansas that is currently undergoing marked economic change and population increase in response to restructuring of the meat packing industry. We estimate volume and source of emissions for three greenhouse gases, carbon dioxide, methane, and nitrous oxide, and contrast the relative importance of gas emissions at the local, state, and national level. The relative amounts of greenhouse gas emissions and the processes that produce them were found to vary considerably across these three geographic scales. In the study area, agribusiness is the leading source of methane and the greatest overall contributor to greenhouse gas emissions. Utilities and the natural gas industry contributed the largest amounts of carbon dioxide, ranking second and third in overall contribution to greenhouse gas levels, respectively. The proportion of total global warming potential (GWP) contributed by CH. is somewhat higher at the local level than at the state or national levels. Contribution to total GWP by N2O in the local area is roughly equivalent to the larger geographic areas. Overall, the relative importance of various emission sources shows considerable contrasts across scale.
机译：最近控制温室气体排放的国际协定集中了解气候研究和政策社区对减少这些辐射活性物质的生产和排放的策略。大多数方法采用了“自上而下”的观点，其中减缓战略在国家政府的水平上陷害。然而，排放发生在当地，而不是国家尺度。我们描述了一项研究，旨在记录来自西南堪萨斯高原地区的当地区域的温室气体排放，目前正在进行明显的经济变化和人口增加，以应对肉类包装行业的重组。我们估计三种温室气体，二氧化碳，甲烷和氧化亚氮的排放量和排放来源，并对比当地，州和国家一级的气体排放的相对重要性。温室气体排放的相对量和产生它们的过程在这三个地理尺度上都会有很大差异。在研究领域，农业综合企业是甲烷的主要来源和最大的温室气体排放贡献者。公用事业和天然气行业分别为最大数量的二氧化碳贡献，分别为温室气体水平的总体贡献排名第二和三分之一。全球变暖潜力（GWP）的比例由CH贡献。地方一级比在州或国家层面略高。当地N2O在局域N2O对全长GWP的贡献大致相当于较大的地理区域。总的来说，各种排放来源的相对重要性显示出跨越规模相当大的对比。

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