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UCL-led study finds climate impact caused by growing space industry needs urgent mitigation

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The rapidly growing space industry may have a greater climate effect than the aviation industry and undo repair to the protective ozone layer if left unregulated, according to a new study led by UCL and published in the journal Earth’s Future as an open-access paper. The space industry is one of the world’s fastest growing sectors.

Climate 428
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MIT team proposes SCR emission control for hybrid aviation turbines; reducing NOx by 95%

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At cruising altitude, airplanes emit a steady stream of NO x into the atmosphere, where the chemicals can linger to produce ozone and fine particulates. Now, MIT engineers are proposing using an ammonia-based selective catalytic reduction (SCR) system that could result in an approximately 95% reduction in NO x emissions in exchange for a ~0.5%

MIT 268
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Eaton introduces set of products to reduce vapor emissions during refueling; LEV III regulations

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Power management company Eaton has introduced a complete suite of solutions from its Vehicle Group to reduce vapor emissions produced during the refueling of gasoline-powered vehicles. If fuel vapor is released into the atmosphere, it contributes to a category of pollutants known as evaporative emissions.

Eaton 221
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Texas study finds PHEV use could increase ozone at night, decrease ozone during the day

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A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours.

Ozone 218
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California Air Resources Board Unveils $3.7M in Rebates for Plug-in Hybrid and Zero-Emission Vehicles

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The California Air Resources Board announced $3.7 million in rebates for plug-in hybrid and zero emissions vehicles as part of an overall $42.3 The rebates offer up to $5,000 for the purchase of zero-emission (e.g., The rebates offer up to $5,000 for the purchase of zero-emission (e.g.,

Plug-in 225
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

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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. NO x is a precursor for both ground level ozone and secondary PM 2.5 Source of data: US EPA (2019). Chart: MECA.

Emissions 291
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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 California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). One hybrid electric vehicle (HEV) equipped with a PFI engine was also used.