Unexpected slowdown of US pollutant emission reduction in the past decade [Earth, Atmospheric, and Planetary Sciences]

Ground and satellite observations show that air pollution regulations in the United States (US) have resulted in substantial reductions in emissions and corresponding improvements in air quality over the last several decades. However, large uncertainties remain in evaluating how recent regulations affect different emission sectors and pollutant trends. Here we...

Source: Proceedings of the National Academy of Sciences - May 15, 2018 Category: Science Authors: Zhe Jiang, Brian C. McDonald, Helen Worden, John R. Worden, Kazuyuki Miyazaki, Zhen Qu, Daven K. Henze, Dylan B. A. Jones, Avelino F. Arellano, Emily V. Fischer, Liye Zhu, K. Folkert Boersma Tags: Physical Sciences Source Type: research