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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

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Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. The report finds that CO 2 emissions rates and fuel economy values reflect a very favorable multi-year trend beginning in MY 2005. The fleet-wide average real world MY 2011 personal vehicle CO 2 emissions value is 398 g/mi and average fuel economy is 22.4

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ICCT update finds real-world vehicle fuel economy gap continues to widen in Europe to 40%

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The gap between official fuel-economy figures and the real world for new cars in the EU has reached 40 per cent, according to the latest update by the International Council on Clean Transportation (ICCT) to its on-going research into in-use vehicle fuel efficiency and CO 2 emissions. Earlier post.). Source: ICCT. Click to enlarge.

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CRC study finds some adverse results from use of mid-level ethanol blends in MY 2001-2009 engines; DOE and ethanol industry say study significantly flawed

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The study claims mechanical damage and suggests degraded engine performance, emissions and durability on conventional vehicles from the use of E15 or E20 fuel. CRC research programs are managed by five technical committees (Advanced/Vehicle/Fuel/Lubricants, Atmospheric Impacts, Emissions, Performance, and Aviation.). Background.

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EPA: US greenhouse gases up 2% in 2013; increased coal consumption, cool winter

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US GHG emissions by sector, 1990-2013. Total US greenhouse emissions were 6,673 million metric tons of carbon dioxide equivalent in 2013, an increase of 2% (127.9 over the prior year, according to the EPA’s newly published Inventory of US Greenhouse Gas Emissions and Sinks: 1990–2013. Total US emissions have increased by 5.9%

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Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

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In a paper published in the ACS journal Environmental Science & Technology , the team found that emission factors for HNCO ranged from 0.69 mg kg fuel –1 and were significantly higher than previous biomass burning emission estimates. In the reported study, Wentzell et al.

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EIA Annual Energy Outlook explores implications of behavior and demographics on light-duty vehicle energy demand

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Light-duty VMT is beginning to decouple from traditional drivers. The most recent of these In Focus articles explores the impact of demographics and behavior on light-duty vehicle (LDV) energy demand. LDV energy use is driven by both LDV fuel economy and travel behavior, as measured by vehicle miles traveled (VMT). Source: EIA.

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Singapore introducing stiff new feebate scheme for low carbon cars

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Singapore will implement a new Carbon Emissions-Based Vehicle Scheme (CEV) on 1 January 2012, providing rebates to qualified new cars, taxis, and imported used cars with low carbon emissions, and imposing an equivalent surcharge on higher emitting vehicles. The CEV will be applicable till 31 December 2014.

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