Aspirational nitrogen interventions accelerate air pollution abatement and ecosystem protection

作者：Yixin Guo, Hao Zhao, Wilfried Winiwarter, Jinfeng Chang, Xiaolin Wang, Mi Zhou, Peter Havlík, David Leclère, Da Pan, David Kanter, Lin Zhang · 发表于：Science Advances · 年份：2024 · DOI：10.1126/sciadv.ado0112 · 被引用次数：29 · 研究领域：Air Quality and Health Impacts、Atmospheric chemistry and aerosols、Climate Change Policy and Economics

Although reactive nitrogen (Nr) emissions from food and energy production contribute to multi-dimensional environmental damages, integrated management of Nr is still lacking owing to unclear future mitigation potentials and benefits. Here, we find that by 2050, high-ambition compared to low-ambition N interventions reduce global ammonia and nitrogen oxide emissions by 21 and 22 TgN/a, respectively, equivalent to 40 and 52% of their 2015 levels. This would mitigate population-weighted PM 2.5 by 6 μg/m 3 and avoid premature deaths by 817 k (16%), mitigate ozone by 4 ppbv, avoid premature deaths by 252k (34%) and crop yield losses by 122 million tons (4.3%), and decrease terrestrial ecosystem areas exceeding critical load by 420 Mha (69%). Without nitrogen interventions, most environmental damages examined will deteriorate between 2015 and 2050; Africa and Asia are the most vulnerable but also benefit the most from interventions. Nitrogen interventions support sustainable development goals related to air, health, and ecosystems.