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Study finds anthropogenic PM and dust undercutting global solar energy production

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According to a new study led by a team at Duke University, airborne particulate matter and dust are cutting solar photovoltaic energy output by more than 25% in certain parts of the world, with roughly equal contributions from ambient PM and PM deposited on photovoltaic surfaces. Credit: ACS, Bergin et al. Click to enlarge.

Solar 218
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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). Across scenarios, we found the more cars that transitioned to electric power, the better for summertime ozone levels.

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HALO research aircraft measuring the emissions of megacities in EmeRGe project

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The University of Bremen is the scientific base of the international project known as EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional and Global scales). Burrows, the Principal Investigator of the mission and a professor at the Institute of Environmental Physics at the University of Bremen.

Emissions 268
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Test of Planet-Cooling Scheme Could Start in 2022

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Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. The proposal calls for what’s known as “solar geoengineering”: cooling the planet by deflecting sunlight that would otherwise strike the planet.

Ozone 118
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Study: Urban grime releases NOx when exposed to sunlight

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Researchers at the University of Toronto have found that natural sunlight triggers the release of smog-forming NO x compounds from the grime that typically coats buildings, statues and other outdoor surfaces in urban areas. Among these compounds are nitrogen oxides. Donaldson set out to test this concept in the real world.

Ozone 150
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International study of role of soots impact on Arctic climate

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Carbon is dark in color and absorbs solar radiation, much like wearing a black shirt on a sunny day. If you want to be cooler, you would wear a light-colored shirt that would reflect the sun’s warmth. Aboard each aircraft will be a package of instruments to measure aerosol size, number, light absorption and chemical composition.

Climate 199
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UK Awards 1.6M to Project Investigating Stratospheric Particle Injection for Climate Engineering

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A variety of geoengineering options have been proposed in response to anthropogenic global warming, including solar radiation management (SRM) which involves offsetting the effects of GHG increases by causing the Earth to absorb less radiation from the Sun. Earlier post.). Earlier post.). How do we deliver it there? Delivery Systems.

Climate 199