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DLR: cleaner aircraft emissions reduce the climate impact of contrail cirrus

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Impact of a reduction in initial ice crystal number, as may be caused by reduced soot emissions, on global contrail cirrus properties. In our theoretical estimates, we found that a significant reduction in soot emissions is required to reduce the climate impact of contrails effectively. —Ulrike Burkhardt. —Burkhardt et al.

Climate 278
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Pike Research projects alternative fuel buses to represent 50% of total transit bus deliveries by 2015

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Transit bus deliveries by fuel type, world markets: 2010-2016. Transit bus fleets are an important area of focus within the broader effort to reduce emissions from mass transit in urban areas. Adoption of alternative fuel buses in Europe will be quite a bit lower, representing less than one-third of total deliveries.

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California Energy Commission awards nearly $2M to support alternative fuel production and vehicles

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The California Energy Commission unanimously approved funding of $1,974,330 for the expansion and upgrade of a biodiesel production facility and buy-downs of alternative-fuel vehicles. The buy-down incentives help to pay the difference between alternative-fuel vehicles and conventional vehicles. Yokayo Biofuels, Inc.

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ClearRefining Process Upgrades ULSD to Lighter, Cleaner-Burning Fuel; Nevada Designates it an Alternative Fuel

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Nevada-based Advanced Refining Concepts, LLC, (ARC) has developed a process—called ClearRefining—for the upgrading of ultra-low sulfur diesel to a lighter, cleaner burning, higher quality fuel. The ClearRefining units are “zero-emission” at the refinery, Gunnerman said.

Nevada 186
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UK market sees first decline in alternatively fueled vehicle sales in 27 months in June

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as ongoing confusion over low emission zones and diesel, the removal of key ultra low emission vehicle incentives and an overall decline in buyer confidence affected the market. Another month of decline is worrying but the fact that sales of alternatively fueled cars are going into reverse is a grave concern.

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EPA to award up to $5M for projects to reduce diesel emissions at ports

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Non-road Diesel Vehicles and Equipment: the incremental cost of a newer, cleaner vehicle or piece of equipment powered by a model year 2013 or newer certified non-road diesel engine, up to 25% of the cost of an eligible replacement vehicle or piece of equipment. Emissions Ports and Marine'

EPA 261
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DOE: US average EV CO2e/year is 4,815 lbs, vs. 11,435 lbs for average gasoline car

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Although all-electric vehicles (EVs) produce zero tailpipe emissions, there are upstream emissions of greenhouse gases from electricity production. Using electricity production data by source and state, the DOE’s Alternative Fuels Data Center has estimated the annual carbon dioxide (CO 2 e)-equivalent emissions of a typical EV.

Gasoline 313