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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

Green Car Congress

Major ridesourcing companies Uber and Lyft have promised all-electric fleets by 2030 in an effort to reduce their carbon footprint. Previously, researchers calculated that rideshare companies’ carbon footprints could significantly decrease by fully electrifying their fleets.

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Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

Green Car Congress

A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al. Platt et al.

Pollution 362
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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

Green Car Congress

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. —Bishop et al. In their study, Bishop et al.

Emissions 150
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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. It, or a scaled-up version, could also provide a solution for the Asian motor vehicle fleet, in which two-stroke engine vehicles constitute a major share—and contribute significantly to air pollution.

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What Are the Environmental Impacts of Tires

Clean Fleet Report

Leachate was considered the main driver of toxicity in both organisms, with the particles themselves enhancing the toxicity in comparison to the leachate alone. More Information: Emissions Analytics , Tire Dust Is Pollution ; Why Don’t Tires Last as Long on an EV? See more at E Magazine. Send questions to: question@earthtalk.org.

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China is exporting so many EVs that it needs more ships – a lot more

Baua Electric

Demand is so high that the country is on track to amass what will be the world’s fourth-largest fleet in a few short years, with new trade routes being created especially for Chinese EVs. By comparison, Japan tops the list with 284 ships, followed by Norway, which has 102. to 8.7%,” Veson analyst Andrea de Luca told Reuters. “We

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Study Finds Environmental and Tailpipe Pollutants Benefits in Using Biodiesel in Construction Vehicles

Green Car Congress

Using biodiesel in construction vehicles offers promising environmental benefits in terms of reduced tailpipe emissions as well as reductions in fuel cycle emissions of selected pollutants, according to a new study by researchers at North Carolina State University. Seven scenarios were used in the LCI analysis.

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