Different regions of the world and different sectors of activity emit various amounts of greenhouse gases and other air pollutants affecting climate change. Knowing the details of these contributions can help policymakers ...
Environment
Jan 11, 2023
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New research has identified a lesser-known form of ozone playing a big role in heating the Southern Ocean—one of Earth's main cooling systems.
Environment
Apr 22, 2022
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Atmospheric ozone, which can regulate the amount of incoming ultraviolet radiation on the Earth's surface, is important for the atmospheric environment and ecosystems. Tropospheric ozone, primarily originating from photochemical ...
Earth Sciences
May 21, 2021
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Although stratospheric ozone protects us by filtering out the sun's ultraviolet radiation, tropospheric ozone is a harmful pollutant. A new study has shown that ozone in the lower layers of the atmosphere decreases crop yields ...
Plants & Animals
Apr 5, 2021
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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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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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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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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
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22
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
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The Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) is the first onboard mechanically cooled superconducting mixer and high-resolution system for measuring atmospheric minor constituents related to stratospheric ...
Earth Sciences
Apr 9, 2012
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