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Should we be encouraging EVs or discouraging old smoking cars that are the most polluting? | Opinion

EV Central

Interesting, but not even half as mind blowing as the work of genius and inventor Donald Stedman, who was a chemist at the University of Denver. More than 30 years ago, Stedman came up with a machine that could instantly measure and analyse the emissions of cars driving past, used infrared light.

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William Ratcliff, Former IEEE Region 3 Director, Dies at 80

Cars That Think

He earned a bachelors degree in electrical engineering from Purdue University , in West Lafayette, Ind. He earned two bachelors degrees, one in computer science in 1976 and the other in electrical engineering in 1978, both from the University of Sydney. He later returned to the University of Massachusetts and in 1996 received a Ph.D.

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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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University of Texas at Austin study measuring methane emissions released from natural gas production

Green Car Congress

A research team led by The University of Texas at Austin, and including engineering and environmental testing firms URS and Aerodyne Research, is conducting a major field study to measure methane emissions from natural gas production, about which little empirical data exist.

Austin 210
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Modelling the Impact of PHEVs on Ozone in Denver

Green Car Congress

Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. VOC emissions would have been reduced by 57 tpd.

Denver 170
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TRUE US database shows emissions characteristics of US fleet

Green Car Congress

To complement its work on real-world emissions in Europe, TRUE has compiled remote sensing data from the states of Colorado and Virginia and the University of Denver to investigate the emissions of US light-duty vehicles. By 2018, the percentage of the fleet responsible for 50% of total NO emissions had decreased to 11%.

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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

Green Car Congress

By including upstream emissions from fuels, GHG emissions from cities exceed those attributed to direct end-use by up to 24% (for Toronto). By including upstream emissions from fuels, the researchers found that GHG emissions attributable to cities exceed those from direct end use by up to 24%. Tonnes CO 2 e/capita.

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