In a first-ever study using ozone data collected by commercial aircraft, researchers from the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder found that levels of ...
Earth Sciences
Aug 21, 2020
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411
Tropospheric ozone is produced via the photochemical reaction of volatile organic compounds, carbon monoxide, and nitrogen oxides in the presence of sunlight. Over the past 20 years, serious ozone pollution has been found ...
Environment
Jun 12, 2020
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4
Atmospheric contamination is one of society's main concerns, with nitrogen dioxide (NO2) and tropospheric ozone (O3) being among the contaminants that are giving rise to the most concern. In principle, the measures to reduce ...
Environment
Apr 27, 2020
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5
In July 2015, U.S. Environmental Protection Agency head Gina McCarthy was being grilled by lawmakers over President Obama's Clean Power Plan requiring states to limit carbon emissions, when she was asked, "What percentage ...
Earth Sciences
Aug 12, 2019
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46
NASA research scientist Tom Hanisco set out to build an instrument capable of measuring a short-lived chemical that cleanses the atmosphere of methane—a potent greenhouse gas—but found instead that his discovery outshined ...
Environment
Apr 30, 2019
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12
On Jan. 31, NASA ended the Tropospheric Emission Spectrometer's (TES) almost 14-year career of discovery. Launched in 2004 on NASA's Aura spacecraft, TES was the first instrument designed to monitor ozone in the lowest layers ...
Space Exploration
Feb 14, 2018
0
22
New measurements of molecular iodine in the Arctic show that even a tiny amount of the element can deplete ozone in the lower atmosphere.
Environment
Sep 07, 2017
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21
Scientists at The University of Alabama in Huntsville (UAH) have used UAH's Rocket-city Ozone (O3) Quality Evaluation in the Troposphere (RO3 QET) Lidar to measure ozone that was chemically produced by summertime lightning ...
Earth Sciences
Feb 17, 2016
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36
People the world over are feeling, or soon will feel, the effects of the strongest El Niño event since 1997-98, currently unfolding in the eastern equatorial Pacific Ocean. New satellite observations are beginning to show ...
Earth Sciences
Dec 15, 2015
0
13
(Phys.org) —New NASA research on natural ozone cycles suggests ozone levels in the lowest part of Earth's atmosphere probably won't be affected much by projected future strengthening of the circulating winds that transport ...
Earth Sciences
Apr 28, 2014
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