A team of researchers affiliated with a host of institutions in the U.S. has found that an increase in wildfires in western parts of the United States has led to increases in two kinds of air pollutants in areas both near ...
During long portions of the past 2.4 billion years, the Earth may have been more inhospitable to life than scientists previously thought, according to new computer simulations.
Evolution
Jan 4, 2022
0
843
Ozone levels in the earth's troposphere (the lowest level of our atmosphere) can now be forecasted with accuracy up to two weeks in advance, a remarkable improvement over current systems that can accurately predict ozone ...
Environment
Jun 24, 2021
0
38
Ozone is a pollutant at ground level, but very high in the atmosphere's "ozone layer," it absorbs damaging ultraviolet radiation. Past studies have examined ozone levels in the Southern Hemisphere, but little is known about ...
Environment
Jun 16, 2021
1
18
Scientists at UC San Diego, San Diego State University and colleagues find that extreme heat and elevated ozone levels, often jointly present during California summers, affect certain ZIP codes more than others.
Environment
May 24, 2021
2
12
When high in the atmosphere, ozone protects Earth from harmful solar radiation—but ozone at ground level is a significant pollutant. Exposure to high concentrations of ground-level ozone aggravates respiratory illnesses, ...
Earth Sciences
Apr 20, 2020
5
178
A pair of researchers at the University of California, Berkeley, has used satellite observations as a way to measure the lifetime of nitrogen oxide (NOx) levels above multiple North American cities. In their paper published ...
Ozone depletion in the stratosphere continues to affect not only ultraviolet (UV) radiation levels at the Earth's surface but also climate in the Southern Hemisphere, an international study reports.
Environment
Jun 24, 2019
0
197
Ozone layer depletion has increased snowfall over Antarctica in recent decades, partially mitigating the ongoing loss of the continent's ice sheet mass, new University of Colorado Boulder research finds.
Earth Sciences
Dec 10, 2018
1
48
In China, people breathe air thick with the lung-damaging pollutant ozone two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new assessment. By one metric—total number ...
Environment
Aug 29, 2018
0
28
