气候变化领域集成服务门户(CCPortal): Quantifying US air pollution policy: How political and regional factors influence pollutant mitigation

CCPortal

DOI	10.1093/pnasnexus/pgae199
	Quantifying US air pollution policy: How political and regional factors influence pollutant mitigation
	Zhang, Guoxing; Chen, Zhanglei; Li, Jiexun; Su, Bin; Gao, Yang; Yu, Lean
发表日期	2024
EISSN	2752-6542
起始页码	3
结束页码	5
卷号	3 期号:5
英文摘要	Air pollution control in the United States has evolved into a comprehensive policy system spanning from the federal to the state level over time. A unified quantitative analysis of policy intensity can shed light on the policy evolution across different levels, the influence of partisan and regional factors on policy, and the relationships with emissions of major pollutants. By harnessing the policy text of the Clean Air Act (CAA) at the federal level and State Implementation Plans (SIPs) at the state governments (1955-2020), we deployed a Natural Language Processing approach to define a policy intensity index to systematically quantify the US air policy landscape. Our findings highlight that the 1970 CAA amendment carries the most vigorous intensity as it established a holistic control system for the first time. Subsequent years witnessed a general trend of partisan polarization, eventually leading to a graduate convergence between red and blue states. Blue states demonstrated a closer alignment with federal directives and a superior efficacy in pollutant reduction. Regionally, the Northeast displays the highest overall policy intensity, and the West exhibits the highest coordination with the federal benchmarks, making these regions outperform others in air pollution control. Our study not only discusses policy implications for air pollutant reductions considering partisan and regional differences but also provides a novel measurement tool to quantify policies for assessing disparities and synergies.
英文关键词	Clean Air Act; policy intensity; political polarization; natural language processing; policy effectiveness
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Social Sciences - Other Topics
WOS类目	Multidisciplinary Sciences ; Social Sciences, Interdisciplinary
WOS记录号	WOS:001235555000001
来源期刊	PNAS NEXUS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297524
作者单位	Lanzhou University; Western Washington University; National University of Singapore; National University of Singapore; Sichuan University
推荐引用方式 GB/T 7714	Zhang, Guoxing,Chen, Zhanglei,Li, Jiexun,et al. Quantifying US air pollution policy: How political and regional factors influence pollutant mitigation[J],2024,3(5).
APA	Zhang, Guoxing,Chen, Zhanglei,Li, Jiexun,Su, Bin,Gao, Yang,&Yu, Lean.(2024).Quantifying US air pollution policy: How political and regional factors influence pollutant mitigation.PNAS NEXUS,3(5).
MLA	Zhang, Guoxing,et al."Quantifying US air pollution policy: How political and regional factors influence pollutant mitigation".PNAS NEXUS 3.5(2024).