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New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC.,

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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). No matter how the power is generated, the more combustion cars you take off the road, the better the ozone quality.

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International study of role of soots impact on Arctic climate

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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. Carbon is dark in color and absorbs solar radiation, much like wearing a black shirt on a sunny day.

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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). Chou, as well as the National Taiwan University, especially Po-Hsiung Lin. HALO in-hangar in Taiwan. —Joohn Burrows.

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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. 7b00197.

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Cummins CTO John Wall receives California’s premier air quality award

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The two other recipients are: Dr. Donald Blake, professor of chemistry, University of California Irvine. Smith, professor of global environmental health, University of California Berkeley. The Cummins CTO has consistently taken a proactive environmentally conscious position for the diesel industry throughout his career, ARB said.

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ICCT study finds that transitioning to low-GWP MAC refrigerants in China could avoid up to US$150B in costs

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Among the findings of the report, “HFC-134a phase-out in the Chinese light-duty motor vehicle sector”, was that, considering the social cost of CO 2 e, up to 1 trillion RMB in costs (US$150 billion) required to address climate change could be avoided through 2050 by transitioning to low-GWP alternative MACs. Background.

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