Remove 2007 Remove Fuel Remove Global Remove Ozone
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EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy

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Specifically, in this action, NHTSA is affirming that its statutory authority to set nationally applicable fuel economy standards under the express preemption provisions of the Energy Policy and Conservation Act (EPCA) dictates that such state and local programs are preempted. Earlier post.)

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Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Green Car Congress

Controlling soot from fossil fuels and solid biofuels may be a faster method of reducing Arctic ice loss and global warming than other options, including controlling CH 4 or CO 2 , although all controls are needed, according to a new study by Dr. Mark Z. Jacobson at Stanford University. degrees Celsius (3 degrees Fahrenheit).

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

Green Car Congress

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. The transportation sector remains the largest source of GHG emissions in the state, and saw a 1% increase in emissions in 2017.

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Study projects net cooling of climate from ship emissions through 2050

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Shipping-induced global temperature change in 2050 using different parameterizations of Indirect Aerosol Effect (IAE). 1 from shipping in 2007, corresponding to 3.3% 1 of the total ship emissions in 2007. Credit: ACS, Lund et al. Click to enlarge. of the total anthropogenic CO 2 emissions in that year.

Climate 240
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Researchers report on potential long-range atmospheric emissions impacts of increased ethanol fuel use in North America

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Terrestrial plants are thought to be the dominant global source of atmospheric ethanol.) Here we use a global 3D chemical transport model (GEOS-Chem CTM) applied to an ensemble of airborne observations to derive new constraints on natural and anthropogenic ethanol sources in North America. —Millet et al.

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Cal Energy Commission approves $1M grant to develop 12L near-zero NOx nat gas engine

Green Car Congress

Cummins has a history of developing natural gas engines for heavy-duty application, and its engines are being used globally in a variety of commercial vehicles. grams per brake horsepower hour (g/bhp-hr), and constitute a 90% reduction of emissions compared to the previous standard (CARB 2007) of 2.0

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WMO: Atmospheric Concentrations of Main Greenhouse Gases in 2008 Set New Highs

Green Car Congress

The latest analysis of observations from WMO’s Global Atmosphere Watch (GAW) Programme for 2008 shows that the globally averaged mixing ratios of carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O) reached new highs with CO 2 at 385.2 from 2007 to 2008. ppm, CH 4 at 1,797 ppb and N 2 O at 321.8

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