Gaige Hunter Kerr

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.

Aug 12, 2024 | eos.org | Qiongyu Huang |Akilah K. Alwan |Gaige Hunter Kerr |Alejandro Olvera

A translation of this article was made possible by a partnership with Planeteando. Una traducción de este artículo fue posible gracias a una asociación con Planeteando. En la última década, integrantes de la AGU y la AGQ—la comunidad de afinidad LGBTQIA2S+ de la AGU—ha sido testigo de la transformación emocional e inspiradora de nuestro espacio comunitario.

May 29, 2024 | eos.org | Qiongyu Huang |Akilah K. Alwan |Gaige Hunter Kerr |Alejandro Olvera

Over the past decade, members of AGU and AGQ—the LGBTQIA2S+ affinity community of AGU—have witnessed the emotional and inspiring transformation of our communal space. What began as gAyGU, an informal gathering of friends and colleagues that was largely invisible to official AGU channels and organized solely by word of mouth, has evolved into the current organization of AGQ, a recognized community that has sponsored panel discussions, networking pods, and reception events at AGU annual meetings.

Mar 6, 2024 | ehp.niehs.nih.gov | Gaige Hunter Kerr

Introduction Ambient nitrogen dioxide (NO2), a marker for the complex mixture of traffic-related pollution, and fine particulate matter with aerodynamic diameter ≤2.5μm (PM2.5) pose pernicious threats to public health.1 Exposure to PM2.5 has a well-established association with premature death due to several specific causes,2–4 and recent studies have found moderate to high confidence linking NO2 with new-onset pediatric asthma.5–9 While levels of these pollutants have decreased in the US...

Jul 14, 2023 | pubs.acs.org | Sara F. Camilleri |Gaige Hunter Kerr |Susan Anenberg |Daniel Horton

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