期刊
COMMUNICATIONS EARTH & ENVIRONMENT
卷 3, 期 1, 页码 -出版社
SPRINGERNATURE
DOI: 10.1038/s43247-022-00555-x
关键词
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资金
- European Union Action on BC in the Arctic
- European Union
- Swedish Environmental Protection Agency, Swedish Clean Air and Climate research program
- Arctic climate Across Scales
- Knut and Alice Wallenberg Foundation
- Swiss National Science Foundation
- Ingvar Kamprad Chair for Extreme Environments Research - Ferring Pharmaceuticals
- Academy of Finland
- Japan Society for the Promotion of Science KAKENHI
- Environment Research and Technology Development Fund of the Environmental Restoration and Conservation Agency of Japan
- Arctic Challenge for Sustainability II
- Ministry of the Environment, Japan
- Aarhus University Interdisciplinary Centre for Climate Change
- Nordic Council of Ministers
- Danish Environmental Agency
- Danish Environmental Protection Agency
- DANCEA funds for Environmental Support to the Arctic Region project
- Research Council of Norway
- French IDRIS HPC computing resources and Institut Pierre Simon Laplace computing center
- Arctic Monitoring and Assessment Programme
Tighter integration of modeling frameworks for climate and air quality is urgently needed to evaluate the impacts of clean air policies on future Arctic and global climate. A study combined a new model emulator and comprehensive emissions scenarios to assess the co-benefits of emissions reductions on climate and human health. The findings suggest that reductions in sulfur emissions, while beneficial for human health, could offset the climate benefits of greenhouse gas reductions by enhancing Arctic warming.
A tighter integration of modeling frameworks for climate and air quality is urgently needed to assess the impacts of clean air policies on future Arctic and global climate. We combined a new model emulator and comprehensive emissions scenarios for air pollutants and greenhouse gases to assess climate and human health co-benefits of emissions reductions. Fossil fuel use is projected to rapidly decline in an increasingly sustainable world, resulting in far-reaching air quality benefits. Despite human health benefits, reductions in sulfur emissions in a more sustainable world could enhance Arctic warming by 0.8 degrees C in 2050 relative to the 1995-2014, thereby offsetting climate benefits of greenhouse gas reductions. Targeted and technically feasible emissions reduction opportunities exist for achieving simultaneous climate and human health co-benefits. It would be particularly beneficial to unlock a newly identified mitigation potential for carbon particulate matter, yielding Arctic climate benefits equivalent to those from carbon dioxide reductions by 2050. Reduction in key air pollutants, especially particulate carbon, can help mitigate Arctic warming with associated benefits for global climate and human health, according to Earth system model simulations under future emissions scenarios.
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