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

Green Car Congress

This despite evidence that suggests air pollution impacts from the transportation sector exceed those from greenhouse gases. … NO x -vs.VOC-limited for O 3 , NH 3 -rich vs. For example, states in the western US (WUS) generally produce a larger fraction of their electricity from renewable and/or “emission-free” sources (i.e.,

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Why Schools Should Electrify Their Bus Fleets

Blink Charging

Even with a flurry of activity and available funding, though, only about 1% of school buses in the country are currently electric ( matching the approximate percentage of cars and light duty trucks on the road that are electric ). Here are several reasons for school districts to switch to electric buses.

Fleet 123
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Study finds anthropogenic PM and dust undercutting global solar energy production

Green Car Congress

Percent reduction in visible solar energy due to ambient PM (plus a small contribution from ozone) (A), only dust PM deposition (B) deposition of all PM components (C), and atmospheric and deposited combined (D; note change in scale). The Arabian Peninsula loses much more solar power to dust than it does manmade pollutants, Bergin said.

Solar 218
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ARB posts discussion draft of new proposed mobile-source emissions reduction strategy through 2030; Advanced Clean Cars 2 regulation

Green Car Congress

ARB staff developed this strategy using a multi-pollutant scenario planning tool ( Vision 2.0 ) that quantifies changes in ozone and PM 2.5 Projected statewide light duty vehicle technology mix. The electrical grid and hydrogen supply supporting these electric vehicles will need to represent 50% renewable energy generation.

Clean 150
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New Comprehensive Lifecycle Energy and Emissions Inventory Includes Non-Operational Components; Large Aircraft Can Perform Better than Light Rail

Green Car Congress

Inventorying criteria air pollutants showed that vehicle non-operational components often dominate total emissions. Life-cycle criteria air pollutant emissions are between 1.1 Of the non-road modes (rail and air), light aircraft showed the worst performance per PKT. Chester and Horvath (2009). Click to enlarge.

Light 150
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Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Green Car Congress

Jacobson used a computer model of global climate, air pollution and weather that he developed over the last 20 years and updated to include additional atmospheric processes to analyze how soot can heat clouds, snow and ice. Soot could be further reduced by converting vehicles to run on renewable electric power. Mark Jacobson.

Global 230
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Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

Green Car Congress

These technologies include, but are not limited to, advanced aftertreatment and waste heat recovery; lean-burn plus lean-NO x emissions traps; integration of zero-emission miles technologies; further refinements in reducing friction and parasitic energy losses; and widespread utilization of renewable and natural gas and hydrogen blends.

Climate 257