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Study: plant roadside hedges rather than trees to combat near-road pollution

Green Car Congress

Urban planners should plant hedges—or a combination of trees with hedges—rather than just relying on roadside trees if they are most effectively to reduce pollution exposure from cars in near-road environments, according to a new study from the University of Surrey. The best way to tackle pollution is to control it at the source.

Pollution 354
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Study: traffic density, wind and air stratification influence concentrations of NO2

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In connection with the effects of the COVID-19 pandemic, satellite measurements made headlines showing how much the air pollutant nitrogen dioxide (NO 2 ) had decreased in China and northern Italy. The statistical analysis has also enabled the researchers to remove the influence of the weather from the time series of pollutant concentrations.

Wind 186
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Microplastics in Arctic snow suggest widespread air pollution

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Wind plays a role in carrying microplastics (MPs, shreds of plastic less than five millimeters long) to both the snowy streets of European cities and remote areas of the Arctic Ocean. They visited five ice floes by ship-based helicopters or dinghies during three expeditions.

Pollution 223
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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. Pollution from ships creates lines of clouds that can stretch hundreds of miles. The difference helps explain how much industrial pollution influences clouds. NASA Earth Observatory.

Emissions 223
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CMA CGM partners with Energy Observer on hydrogen-powered shipping

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The CMA CGM partnership deals with the development of cleaner and more sustainable energies to eliminate CO 2 emissions, greenhouse gases and air pollutants. It aims to experiment, test and develop energy solutions based on hydrogen, solar, tidal and wind power.

Hydrogen 307
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UCI-led study finds California’s strict air quality regulations have helped farmers

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Researchers at the University of California, Irvine and other institutions have conducted a statistical analysis of pollution exposure and yields from 1980 to 2015 on a key sector making up about 38% of the state’s total agricultural output: perennial crops such as almonds, grapes, nectarines, peaches, strawberries and walnuts.

Ozone 186
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ICCT life-cycle analysis finds no climate benefit in using LNG as marine fuel

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However, the use of scrubbers has recently come under intense scrutiny and is undergoing regulatory review due to concerns about both the reliability of these systems to deliver consistent air pollution compliance and because of the water pollution produced by open-loop operations. Olmer et al. —Pavlenko et al.

Mariner 427