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Rice/EPA study finds ground-level ozone falling faster than CMAQ model predicted

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Researchers from Rice University and the US Environmental Protection Agency (EPA) report in a paper in the journal Atmospheric Chemistry that particularly in Northeastern cities, ozone levels dropped even beyond what was anticipated by cutting emissions of NO x from 2002 to 2006. from 2002 to 2006. Earlier post.).

Ozone 218
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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

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The transportation sector remains the largest source of GHG emissions in the state, and saw a 1% increase in emissions in 2017. Transportation sector emission sources include combustion of fuels utilized in-state that are used by on-road and off-road vehicles, aviation, rail, and water-borne vehicles, as well as a few other smaller sources.

2017 230
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NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

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A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. Even though the CO 2 enhancements over background were comparable in the two years, about 25 ppm in 2002 and 35 ppm in 2010, the ?CO/?CO2 CO2 ratio for this flight track segment decreased from 24.5

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Maersk calls for EU enforcement of reefer legislation, pushes its Supotec foam

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Maersk Container Industry (MCI) is calling for tougher enforcement of European environmental legislation designed to protect the Earth’s ozone layer and help prevent climate change. Current EU legislation bans the “import” or “placing on the market” of reefer containers with significant potential to damage the climate and ozone layer.

Ozone 225
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Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

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The update identifies eight key sectors for ongoing action: Energy; Transportation, fuels, land use and infrastructure; Agriculture; Water; Waste management; Natural lands; Short-Lived Climate Pollutants (such as methane and black carbon); and Green Buildings. Transportation. Background.

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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

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CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. Source of data: US EPA (2019).

Emissions 291
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US Climate Action Report to UN Projects 4% Growth in Total US GHG Emissions to 2020

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The report projects that transportation-related CO 2 emissions will drop 1.5% The transportation calculation noes not include the implementation of the new national light-duty vehicle greenhouse gas standards ( earlier post ) or other coming regulatory measures. to 7,416 Tg CO 2 Eq., to 1,853 Tg CO 2 Eq. from 2005 to 2020.

Climate 199