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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

Green Car Congress

The report’s best estimate of direct climate influence by black carbon is about a factor of two higher than most previous work. This includes the estimates in the 2007 Intergovernmental Panel on Climate Change (IPCC) Assessment, which were based on the best available evidence and analysis at that time.

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Study suggests current levels of methane leakage would result in numerous decades of more rapid climate change from a shift to natural gas vehicles

Green Car Congress

A) CNG light-duty cars vs. gasoline cars; (B) CNG heavy-duty vehicles vs. diesel vehicles; and (C) combined-cycle natural gas plants vs. supercritical coal plants using low-CH 4 coal. The climatic effect of replacing other fossil fuels with natural gas varies widely by sector (e.g., Source: Alvarez et al. Click to enlarge.

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ClearFlame Engine Technologies secures $2.5M to advance diesel-free truck demonstration; ethanol-fueled MCCI

Green Car Congress

The ClearFlame solution leverages diesel-style mixing-controlled compression ignition (MCCI). ClearFlame’s solution provides the same performance, efficiency, and rugged practicality associated with diesel engines, while eliminating the need for complex aftertreatment solutions.

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Study finds that California clean diesel programs have slashed black carbon, a powerful short-term contributor to global warming

Green Car Congress

California’s air quality programs have forced a reduction in black carbon despite a significant increase in diesel fuel consumption. The reductions occurred during a time when diesel fuel consumption increased by about a factor of five. It is also one of the major short-lived contributors to climate change.

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Volkswagen customers in Germany ordering more diesel vehicles; share of 43% in 2018, vs. 39% in 2017

Green Car Congress

Customers of the Volkswagen Passenger Cars brand in Germany are once again placing more orders for diesel vehicles. In 2018, the share of incoming orders for vehicles equipped with the latest diesel technology as a proportion of the overall vehicle portfolio was 43% compared to 39% in 2017.

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How renewable diesel can help fight climate change

Clean Fleet Report

These vehicles are responsible for moving 72% of all the goods we consume —such as the orders we place on Amazon that are later delivered to our doorstep, or the fresh groceries we buy from the local markets—but they burn over 44 billion gallons of diesel fuel every year, emitting 432 million metric tons of GHG emissions.

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Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

Green Car Congress

Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. SOA contributions from the two sources are equivalent at 6% diesel fuel use. Organic aerosol (OA) in the atmosphere is detrimental to human health and represents a highly uncertain forcing of climate change. Gentner et al.

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