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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. Most emission inventory calculations use a computer model to estimate the fleet’s emissions.

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Study finds 2008 recession contributed to increase in age of US LDV fleet, slowing of emission reductions

Green Car Congress

The global economic recession of 2008—which severely depressed light-duty vehicle sales—resulted in an increase in the age of the light-duty vehicle fleet in the US that likely slowed the rate of decrease of fleet average emissions, according to a study by Gary Bishop and Donald Stedman at the University of Denver.

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The New Supersonic Boom

Cars That Think

Piloting the bullet-shaped Bell X-1 rocket plane in 1947, Chuck Yeager became the first person to exceed the speed of sound while in horizontal flight. The best-funded of this group is Denver-based Boom Technology (which also goes by the trade name Boom Supersonic). Everett Collection/Alamy.

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Andrew Leland on Assistive Tech for the Blind

Cars That Think

Leland is gradually losing his vision due to a congenital condition called retinitis pigmentosa , which slowly kills off the rods and cones that are the eyes’ light receptors. If you think about the blind person, you know having a mouse isn’t very useful because they can’t see where the pointer is.

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City of LA, Xerox introduce multi-modal transportation app for commuters

Green Car Congress

The Los Angeles Times reported that transit ridership has declined across Southern California despite billions in investment. Although LA Metro has invested $9-billion investment in new light rail and subway lines, the system now sas fewer boardings than it did three decades ago, when buses were the only option.

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Summer Update

Plug In Partners

They join Founding Members from these cities: Arlington, TX, Baltimore, Boulder, Dallas, Denver, Fort Worth, Irvine, CA, Los Angeles, Memphis, Philadelphia, Seattle, San Francisco, and Wenatchee, WA. The list of supporters/partners now includes links to the members’ web sites along with a contact person.