
Aaron van Donkelaar
Articles
-
1 month ago |
nature.com | Soo-Yeon Kim |Gaige Hunter Kerr |Aaron van Donkelaar |J. Jason West |Susan Anenberg |Randall V. Martin
Air pollution and climate change are urgent global concerns, with urban areas contributing heavily to both air pollutants and greenhouse gas emissions. Here we calculate fine particulate matter, nitrogen dioxide, and ozone concentrations and fossil-fuel carbon dioxide emissions per capita in 13,189 urban areas worldwide from 2005 to 2019 and analyze correlations between trends for these pollutants, leveraging recently-developed global datasets. Globally, we found significant increases in ozone (+6%) and small, non-significant changes in fine particulate matter (+0%), nitrogen dioxide (−1%), and fossil-fuel carbon dioxide emissions (+4%). Also, over 50% of urban areas showed positive correlations for all pollutant pairs, though results varied by global region. High-income countries with strong mitigation policies experienced decreases in all pollutants, while regions with rapid economic growth had overall increases. This study shows the impacts of urban environmental initiatives in different regions and provides insights for reducing air pollution and carbon dioxide emissions simultaneously. Globally, urban areas experienced increases in ozone concentrations from 2005 to 2019, whereas fine particulate matter, nitrogen dioxide, and fossil-fuel carbon dioxide emissions showed non-significant variations, according to analysis of large geospatial air pollution datasets.
-
Feb 8, 2024 |
dx.doi.org | Aaron van Donkelaar |Melanie S. Hammer |Liam Bindle |Michael Brauer
You are free to share (copy and redistribute) this article in any medium or format within the parameters below:Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Non-Commercial (NC): Only non-commercial uses of the work are permitted. No Derivatives (ND): Derivative works may be created for non-commercial purposes, but sharing is prohibited.
Try JournoFinder For Free
Search and contact over 1M+ journalist profiles, browse 100M+ articles, and unlock powerful PR tools.
Start Your 7-Day Free Trial →