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Study finds deploying EVs isn’t enough—reaching emission goals requires early retirement of polluting trucks – Charged EVs

Baua Electric

However, even if such goals are met, large numbers of old, polluting vehicles will remain on the roads. While the study is focused on California, the authors explain that its insights are applicable globally. Accelerated retirement programs will be critical for California to reach emissions targets by 2045.”

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Study finds modifying urban form may be a strategy to reduce air pollution

Green Car Congress

Based on their findings in a new study, researchers from the University of Washington and the University of Minnesota suggest that modifying urban form—as a means of affecting motor vehicle usage—may be a strategy to mitigate urban air pollution.

Pollution 231
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UB study finds link between ambient ozone exposure, artery wall thickness

Green Car Congress

Long-term exposure to ambient ozone appears to accelerate arterial conditions that progress into cardiovascular disease and stroke, according to a new University at Buffalo study. While the study finds an association between air pollution and atherosclerosis, researchers aren’t clear on why. —Meng Wang. —Meng Wang.

Ozone 311
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Researchers present new explanation for the long-range transport of PAH pollutants

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When airborne particles (green) form before PAHs adhere, both the pollutants and particles dissipate quickly, as shown in the top row. But when the particles form in the presence of pollutants, which is what likely happens in nature, the longer-lasting particles enable the long-range transport of the pollutants (bottom).

Pollution 244
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ICCT-sponsored study of in-use testing of 3 Tier2-Bin5, CA LEV-II light-duty diesels finds wide variation of emissions against the limits

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The International Council on Clean Transportation (ICCT) contracted with the Center for Alternative Fuels, Engines and Emissions at West Virginia University to conduct in-use testing of three light-duty diesel vehicles (two 2.0L diesels and one 3.0L diesel) over pre-defined test routes exhibiting diverse driving conditions.

Diesel 230
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Researchers Sequence the Maize (Corn) Genome

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Resulting improved strains of maize may, for example, produce larger yields, show resistance to disease, offer efficiencies in nitrogen use that would enable farmers to reduce applications of costly, polluting fertilizers, and tolerate changes in rainfall or temperature accompanying climate change. Schnable of Iowa State University.

St. Louis 186
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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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—co-author Professor Piers Forster from the University of Leeds’s School of Earth and Environment in the United Kingdom. —co-lead author Sarah Doherty of the University of Washington in Seattle. —co-lead author Tami Bond of the University of Illinois at Urbana-Champaign. Bond et al.