A previously unknown source of the strong greenhouse gas nitrous oxide has been found in East Siberian Yedoma permafrost. Published in Nature Communications today, the observation was made by an international group of researchers, ...
Environment
Dec 9, 2021
0
25
Earth's atmosphere reacted in surprising ways to the lowering of emissions during the pandemic, showing how closely climate warming and air pollution are linked.
Environment
Nov 10, 2021
0
364
Tackling pollution from the emission of nitrogen compounds, particularly ammonia, could reduce many of the 23.3 million years of life that were lost prematurely across the world in 2013 due to nitrogen-related air pollution, ...
Environment
Nov 4, 2021
0
97
Nitrous oxide (N2O) is a potent greenhouse gas, with 300 times the warming ability of carbon dioxide. Due to fertilizer runoff from farm fields, an increasing load of nitrogen is washing into rivers and streams, where nitrogen-breathing ...
Earth Sciences
Oct 19, 2021
0
473
In the spring of 2020, COVID-19-related restrictions in the United States led to reductions in nitrogen oxide (NOx) emissions because of the sudden drop in road traffic. But even after restrictions were lifted and the flow ...
Environment
Oct 13, 2021
0
18
Crack! Lightning strikes are bright and loud—violent enough to shake your bones and light up the sky. Now, a new study led by the University of Colorado Boulder suggests that these powerful events may also alter the chemistry ...
Earth Sciences
Oct 11, 2021
0
35
The U.N. weather agency says the world—and especially urban areas—experienced a brief, sharp drop in emissions of air pollutants last year amid lockdown measures and related travel restrictions put in place over the coronavirus ...
Environment
Sep 3, 2021
0
25
Your ride might be a modest one—but if it burns gasoline, you have precious metals on board. To reduce pollution at the tailpipe, gasoline cars and trucks today come equipped with catalytic converters that contain platinum-group ...
Materials Science
Aug 19, 2021
0
333
You may have seen the before-and-after-lockdown photos of major cities that appear to show dramatic changes in air quality. In one, the India Gate war memorial in New Delhi is barely visible amid the smog. Then, during lockdown, ...
Environment
Aug 3, 2021
1
4
Nitrogen oxide (NOx), such as nitric oxide (NO), are environmental pollutants. They are often removed via selective catalytic reduction (SCR) technology.
Materials Science
Jul 27, 2021
0
48
