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New study shows a rapid increase of diesel-fueled backup generators across California

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Emissions from these backup generators can harm local residents, regional air quality and the global climate. M.Cubed’s study highlights that many of these generators are in communities that the California Environmental Protection Agency identifies as “disadvantaged,” according to CalEnviroScreen. Source: Bloom Energy.

Diesel 480
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CMU study finds SOA levels in cities like LA will remain high despite cleaner cars; nonlinear relationship between SOA and NOx

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The findings of a study by researchers at Carnegie Mellon University, with colleagues at UC Berkeley, suggest that changing atmospheric NO x levels over the next two decades will likely significantly reduce the effectiveness of stricter new gasoline vehicle emissions standards in reducing concentrations of secondary organic aerosol (SOA).

Cleaner 191
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Study finds that replacing older, highly polluting school buses could lead to 1.3 million fewer daily absences annually

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million fewer daily absences annually, according to a University of Michigan study. Over time, exposure can exacerbate respiratory illnesses and other conditions and lead to missed school days, say the researchers on the open-access study, which appears in the journal, Nature Sustainability. The program is ongoing.

Pollution 170
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UC Davis researcher finds ride-hailing EVs offer triple the emissions benefits of a personally owned EV

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Replacing a gasoline-powered ride-hailing vehicle with an electric vehicle can deliver three times the carbon benefits of a personally owned electric vehicle, according to a study by a University of California, Davis, researcher of Uber and Lyft data. 2020) “Emissions benefits of electric vehicles in Uber and Lyft ride-hailing services.”

Davis 239
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ICCT assesses impact of EV battery manufacturing life-cycle emissions debt; policy implications

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Analysts at the International Council on Clean Transportation (ICCT) have reviewed recent research into the greenhouse gas emissions from the manufacturing of lithium-ion batteries for electric vehicles. They note that the the impacts of battery production on electric vehicles’ overall emissions is “an especially complex topic”.

Emissions 270
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JATO: new car CO2 emissions rise for the first time in a decade in Europe; diesel down, gasoline up, SUVs up

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Average CO 2 emissions generated by new cars in Europe increased during 2017—the first rise in 10 years— according to a new analysis by JATO Dynamics. Covering 23 European markets, the study found that average CO 2 emissions increased by 0.3 g/km in 2017, finishing at 118.1 million units in 2017.

Gasoline 244
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ICCT study examines current & projected use of heavy fuel oil in Arctic shipping; growth in BC emissions points to need for policies

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A new study by the International Council on Clean Transportation (ICCT) estimates heavy fuel oil (HFO) use, HFO carriage, the use and carriage of other fuels, black carbon (BC) emissions, and emissions of other air and climate pollutants for the year 2015, with projections to 2020 and 2025. Click to enlarge.

Oil 283