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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

Green Car Congress

The California Air Resources Board (CARB) has posted a revised draft of California’s proposed Short-Lived Climate Pollutant (SLCP) Strategy. The State’s organic waste should be put to beneficial use, such as for soil amendments/compost, electrical generation, transportation fuel, and pipeline-injected renewable natural gas.

Pollution 150
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Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

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These technologies include, but are not limited to, advanced aftertreatment and waste heat recovery; lean-burn plus lean-NO x emissions traps; integration of zero-emission miles technologies; further refinements in reducing friction and parasitic energy losses; and widespread utilization of renewable and natural gas and hydrogen blends.

Climate 257
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UNEP Report Calls for More Sophisticated Approach to Developing Biofuels; Limitations of Current LCA Studies

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Here, RME show advantages for primary energy and GHG, but disadvantages in terms of acidification, eutrophication and ozone depletion. Increased emissions of GHG may result in particular when production takes place on converted natural land and the associated mobilization of carbon stocks is accounted for, the report finds.

Ozone 186
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The importance of considering non-exhaust traffic emissions; the role of EVs

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As the trend toward cleaner technologies with reduced exhaust emissions continues through the use of catalytic converters, diesel particulate filters (DPF), and improved fuels and engines, non-exhaust PM will soon surpass exhaust emissions and may well become dominant by 2020 both in terms of emissions and contributions to air quality.

Exhaust 150
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SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

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In general, biofuels made from organic waste are environmentally more benign than those from energy crops. The first steps towards sustainable energy and resource management should aim for significant reductions on the demand side, with greater conservation and improved efficiency. However very few studies include water use impacts.

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Researchers Engineer Yeast to Produce Methyl Halides from Biomass; Precursors for Biohydrocarbon Fuels

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cerevisiae to convert biomass to methyl halides with good yield. ZSM-5 and SAPO-34) have been used to convert methyl halides to products including gasoline, olefins, aromatics, alcohols and ethers. ZSM-5 and SAPO-34) have been used to convert methyl halides to products including gasoline, olefins, aromatics, alcohols and ethers.

Engine 150
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National Academies Report Examines Hidden Cost of Energy Production and Use in US; Estimates $120B in 2005

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The committee that wrote the report focused on monetizing the damage of major air pollutants—sulfur dioxide, nitrogen oxides, ozone, and particulate matter—on human health, grain crops and timber yields, buildings, and recreation. cents to about 1.7 The resulting consensus reports undergo external peer review before completion.

2005 246