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Scientists call for careful use of time scales, reference dates and statistical approaches in analyzing climate change trends to avoid distortion and hampering of response

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Demonstrating that the use of different time scales, reference dates, and statistical approaches can generate highly disparate results in climate reports, scientists at the University of Alaska Anchorage argue that careful use of these tools is critical for correctly interpreting and reporting climatic trends in Alaska and other polar regions.

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ICCT analysis finds real-world vehicle fuel consumption gap in Europe at all-time high of 42%

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However, says Dr. Peter Mock, Managing Director of ICCT Europe, since 2001 Europe has seen the largest increase in its gap. As a result, less than half of the on-paper reductions in CO 2 emission values since 2001 have been realized in practice, ICCT says. —Uwe Tietge.

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Study casting doubt on GHG benefits of corn stover ethanol draws sharp criticism by other researchers; Liska responds

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A study published earlier this year in the journal Nature Climate Change that cast doubt on whether biofuels produced from corn residue could meet federal mandates for cellulosic biofuels to reduce greenhouse gas emissions by 60% compared to gasoline ( earlier post ) has drawn critical response published as correspondence in the same journal.

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Study of Sustainable Value in Automobile Manufacturing Finds Mixed Performance for Most OEMs, BMW and Toyota as the Clear Leaders

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Volkswagen only managed to create significantly positive Sustainable Value in 2001, 2002 and 2007. Ford has also languished in negative territory from 2001 onwards, and only temporarily showed signs of recovery in 2004 and 2005 (although still not managing to create positive Sustainable Value). GM achieved a sustainable value of -€9.87

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Converting Oil Shale to Gasoline via Alberta Taciuk Processor Results in Full Fuel Cycle GHG Emissions 1.5-1.75 Larger Than From Conventionally Produced Gasoline

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For comparison, upstream consumption for reformulated gasoline produced from conventional oil is ~0.2-0.25 To put these figures in perspective, emissions from all sectors in the state of Colorado equaled 24 million t of carbon in 2001. Tags: Climate Change Emissions Lifecycle analysis Oil Shale. MJ upstream. MJ/MJ fuel.

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Gallium Nitride and Silicon Carbide Fight for Green Tech Domination

Cars That Think

Can advanced semiconductors cut emissions of greenhouse gases enough to make a difference in the struggle to halt climate change? Starting around 2001, the compound semiconductor gallium nitride fomented a revolution in lighting that has been, by some measures, the fastest technology shift in human history.

Green 100
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California ARB mods to ZEV regulations for IVMs would result in ~1.9% drop in total ZEV/TZEV units 2018-2025; no impact on air quality requirements

Green Car Congress

In addition, although many experts say that the solution to our energy and climate problems is sending the correct price signals to industry and consumers, the transport sector’s behavior is highly inelastic in that it does not change significantly in response to changes in fuel prices, at least in the range that is politically acceptable.

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