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UC Riverside team examines influence of mid-and high-level ethanol blends on pollution from GDI flex fuel vehicle

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the E30 and E78—led to statistically significant reductions of 9%–13% for total hydrocarbon (THC); 13%–44% for non-methane hydrocarbon (NMHC); 20%–35% for carbon monoxide (CO); and 17%–36% for nitrogen oxides (NO x ) emissions compared to the high-aromatics E10 fuel. Their paper is published in the ACS journal Energy & Fuels.

Pollution 255
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ICCT: gap between official and real-world fuel economy figures in Europe reaches ~38%; call to implement WLTP ASAP

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The gap between official and real-world fuel-economy figures in Europe has risen to about 38%, according to a new report published by the International Council on Clean Transportation (ICCT). This procedure was developed in the 1980s and was not originally intended to be used for fuel consumption testing but air pollutants.

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CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

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The test fleet showed statistically significant effects for some pollutants, but not for others. NO x emissions, a target pollutant of concern for this program, did not show any statistically significant difference between the fuels for the FTP nor for each individual FTP phase.

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Roskill expects only 3.2% reduction in shipping emissions of spodumene concentrate by 2030; order of magnitude below IMO ambition

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Transporting larger cargo tonnages on larger vessels benefits from an increased economy of scale and would result in proportionally lower CO 2 emissions. This highlights the benefits increased economies of scale would have on this part of the spodumene supply chain, Roskill said. Regulatory background. Background Data.

Emissions 418
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WUSTL study finds use of air conditioning reduces in-car pollution

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Traffic is a major source of harmful pollutants; daily peak exposures tend to occur near roadways or while traveling—or being stuck—on them. That gave them rare, real-world look at pollutant exposure. With windows closed, the pollutants took longer to enter the vehicle cabin, but also longer to exit it.

Pollution 186
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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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Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. Recent studies have compared emissions of PFI and GDI vehicles, including particle number and mass, gaseous pollutants, and nonmethane organic gas (NMOG) composition for a limited number of compounds.

Fleet 207
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Worldwatch: Fossil fuel subsidies continue to outweigh those for renewable energy; international pledges on reform unfulfilled

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However, reform has been hampered by concerns over how higher fuel prices will affect the broader economy—potentially disrupting key sectors like transport, industry and agriculture—and the ability of poor citizens to cope with higher prices. But these hidden costs (externalities) are not reflected in fossil fuel prices.

Renewable 312