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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

Green Car Congress

In 2017, emissions from GHG emitting activities statewide were 424 million metric tons of CO 2 equivalent (MMTCO 2 e), 5 MMTCO 2 e lower than 2016 levels and 7 MMTCO 2 e below the 2020 GHG Limit of 431 MMTCO 2 e. Changes in emissions by Scoping Plan sector between 2000 and 2017. MMTCO 2 e (6%) from 2013 to 2017. Source: ARB.

2017 230
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São Paulo study finds concentration of ultrafine particulates rose by 1/3 in switch from ethanol to gasoline

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In the first, they found that when fuel prices drove residents of São Paulo, Brazil, to mostly switch from ethanol to gasoline in their flexible-fuel vehicles, local ozone levels dropped 20%. Officials, Geiger said, will need to weigh the increase in ozone against the decrease in nanoparticles when ethanol is used.

Gasoline 150
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California ARB LEV III Concept Targeting Fleet-Average SULEV-Level Emissions Performance from New Vehicles by MY 2022

Green Car Congress

According to a newly-published discussion paper, the primary objective of the proposed standards is to require fleet average SULEV-level emissions performance (similar to the Federal Tier 2 Bin 2 standard) from new vehicles by model year 2022. LEV III—for new passenger vehicles, to be considered by the Board later this year.

Emissions 186
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Study finds air quality models significantly underestimate traffic as source of NOx in Europe

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Using urban eddy covariance measurements, the researchers found that traffic-related NO x emissions in current operational air quality models can be significantly underestimated by up to a factor of 4 across countries with a sizeable fraction of diesel-powered cars in their fleet. Resources. Striednig, C. Lamprecht, A. Hammerle, G.

Europe 150
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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

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A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al.

Fleet 207
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California Energy Commission adopts $100M investment plan for 2013-2014 for green vehicles and fuels

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The program funds projects to encourage the development and use of new technologies and alternative and renewable fuels, including electricity, natural gas, biomethane, hydrogen, and gasoline and diesel substitutes, such as cellulosic ethanol (derived from woody materials, including agricultural waste), and biodiesel from waste grease.