More than 300 million visitors travel to U.S. national parks every year to experience America's iconic landscapes. But poor air quality in parks may negatively affect visitation, according to a study published in Science ...
Environment
Jul 18, 2018
0
48
After decades of progress in cleaning up air quality, U.S. improvements for two key air pollutants have slowed significantly in recent years, new research concludes. The unexpected finding indicates that it may be more difficult ...
Environment
Apr 30, 2018
0
43
Although ozone pollution is dropping across many parts of the United States, western Europe and Japan, many people living in those countries still experience more than a dozen days every year in which levels of the lung irritant ...
Environment
Feb 5, 2018
0
82
For the first time, scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion.
Earth Sciences
Jan 4, 2018
5
4429
In a groundbreaking study released today, scientists at the South Coast Air Quality Management District and the University of Southern California have found that widespread installation of certain "cool roof" materials in ...
Environment
Aug 7, 2017
1
51
An influx of pollution from Asia in the western United States and more frequent heat waves in the eastern U.S. are responsible for the persistence of smog in these regions over the past quarter century despite laws curtailing ...
Environment
Mar 1, 2017
1
104
An unusually warm patch of seawater off the West Coast in late 2014 and 2015, nicknamed "the blob," had cascading effects up and down the coast. Its sphere of influence was centered on the marine environment but extended ...
Environment
Feb 15, 2017
0
22
Extreme weather conditions associated with climate change may extend the ozone season in the Southeastern United States as drought-stressed trees emit more of the precursor compound that helps form the health-threatening ...
Environment
Aug 22, 2016
11
233
If emission rates continue unchecked, regions of the United States could experience between three and nine additional days per year of unhealthy ozone levels by 2050, according to a new study from the Harvard John A. Paulson ...
Environment
Apr 21, 2016
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9
For those living with the threat to life and property from wildfires, Colorado State University scientists have some more bad news: Wildfire smoke seems to elevate levels of ozone, a nasty air pollutant with proven adverse ...
Environment
Jan 25, 2016
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295
