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Satellite Data Suggest U.S. Methane Emissions Underestimated
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Published June 5, 2024
Emissions of the potent greenhouse gas may be higher than previously thought, especially from landfills.
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Nitrogen Dioxide in the Neighborhood
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Published March 7, 2023
A team of scientists mapped nitrogen dioxide in California’s air at the neighborhood scale and found hotspots of the air pollutant near high-rise buildings and food processing facilities.
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Mauna Loa Awakens
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Published November 29, 2022
During the first eruption in nearly four decades, satellites observed the volcano’s nighttime glow and sulfur dioxide plume.
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Scientific Questions Arrive in Ports
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Published October 27, 2021
Satellite observations of nitrogen dioxide near key U.S. ports suggest that increased shipping activity and backlogs may be affecting air quality.
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Faint Glow, Clear Signal from Plants
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Published July 10, 2020
As scientists detect plant fluorescence in better detail, they inch closer to helping farmers respond to extreme weather and close in on understanding how carbon cycles through ecosystems.
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Nitrogen Dioxide Levels Rebound in China
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Published May 22, 2020
With most lockdowns ending and economic activity resuming, levels of the air pollutant have returned to near normal for this time of year.
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