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NOAA study finds reducing particulate air pollution in N America & Europe increases hurricanes in N Atlantic

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A new NOAA study covering four decades of tropical cyclones found that reducing particulate air pollution in Europe and North America has contributed to an increase in the number of tropical cyclones in the North Atlantic basin and a decrease in the number of these storms in the Southern Hemisphere. Credit: NOAA.

Pollution 370
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Stanford study finds current carbon capture technology inefficient & increases air pollution

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A study by Mark Z. Jacobson, professor of civil and environmental engineering at Stanford University, suggests that carbon capture technologies are inefficient and increase air pollution. However, this research finds that it reduces only a small fraction of carbon emissions, and it usually increases air pollution.

Pollution 271
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Study finds air pollution caused by corn production increases mortality rate in US

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A new study finds that environmental damage caused by corn production results in 4,300 premature deaths annually in the United States, representing a monetized cost of $39 billion. Production-weighted national average human mortality per million tonnes of maize produced, by pollutant and supply chain stage. a, Absolute mortality.

Pollution 326
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Two-year study in Canada finds large trucks disproportionately contribute to higher levels of black carbon pollution

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A two-year study led by researchers at the University of Toronto has found large trucks to be the greatest contributors to black carbon emissions close to major roadways. The study is published in the ACS journal Environmental Science & Technology. Shairsingh, Robert M. 8b01914.

Pollution 231
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Study finds wind concentrates pollutants with unexpected order in an urban environment

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Cities—with their canyons, isolated greenery, and congested traffic—create seemingly chaotic and often powerful wind patterns known as urban flows. In previous studies, the existence of these patterns in fluid flows was only verified with idealized “theoretical” flows.

Pollution 231
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NCAR-led study finds COVID-19 lockdowns temporarily raised global temperatures due to reductions in aerosols

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The lockdowns and reduced societal activity related to the COVID-19 pandemic affected emissions of pollutants in ways that slightly warmed the planet for several months last year, according to new research led by the National Center for Atmospheric Research (NCAR). —NCAR scientist Andrew Gettelman, lead author. degrees Fahrenheit (0.1-0.3

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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. The open-access study was published in AGU Advances, a journal of the American Geophysical Union. Pollution from ships creates lines of clouds that can stretch hundreds of miles.

Emissions 223