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Understanding the variability of GHG life cycle studies of oil sands production

Green Car Congress

In a paper published in the ACS journal Environmental Science & Technology , Stanford University assistant professor Adam Brandt reviews a number of recent life cycle assessment (LCA) studies calculating greenhouse gas (GHG) emissions from oil sands extraction, upgrading, and refining pathways—the results of which vary considerably.

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Federal Judge rules California Low Carbon Fuel Standard violates Commerce Clause of US Constitution

Green Car Congress

O’Neill, Eastern District of California, ruled on Thursday that the State of California’s Low Carbon Fuel Standard (LCFS) program is in violation of the Commerce Clause of the US Constitution and issued an injunction prohibiting its enforcement. Federal District Judge Lawrence J. Earlier post.) Earlier post.). Earlier post.).

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Two Lifecycle Studies Find Greater Range in GHG Emissions from both Conventional and Oil Sands Derived Crude Than Previously Shown; Oils Sands Emissions Comparable to Conventional Oil Production in Some Cases

Green Car Congress

Two new lifecycle studies have found that direct greenhouse emissions from producing, transporting and refining oil-sands derived crude, while greater on average than those from conventional crudes, can also overlap the conventional crude range, depending upon a number of factors.

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Average Carbon Intensity of crude to California refineries in 2012 down very slightly from 2010 baseline

Green Car Congress

Staff of the California Air Resources Board (ARB) has posted its calculation of the average 2012 annual carbon intensity of crudes supplied to California refineries. gCO 2/MJ, calculated by weighting the carbon intensity value for each crude by the volume supplied to California refineries during 2012. The average value is 11.36

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Refiners and Truckers Associations Challenge California LCFS in Federal Court

Green Car Congress

The National Petrochemical & Refiners Association (NPRA) filed a legal challenge to California’s Low Carbon Fuel Standard (LCFS) with the US District Court, Eastern District of California, Fresno Division. 1492, and the federal Renewable Fuels Standard. Earlier post.). Earlier post.). Earlier post.). 109-58, 119 Stat.

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Group of Scientists and Economists Urge Inclusion of Indirect Land Use Change Effects for Biofuels and All Transportation Fuels in California LCFS

Green Car Congress

More than 170 scientists and economists have sent a letter to California Air Resources Board (ARB) Chairman Mary Nichols urging the board to account for greenhouse gas emissions from indirect land use change for biofuels and all other transportation fuels under the state’s proposed low carbon fuel standard (LCFS). Earlier post.)

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Road Test: Ford 2023 Escape PHEV

Clean Fleet Report

Running on 87 octane, the front wheels (all-wheel drive is not available) are driven through a continuously variable transmission (CVT) that has five driver selectable drive modes of Eco, Normal, Sport, Slippery and Snow/Sand. Clean Fleet Report spent a week driving in Southern California for a total of 179 miles, averaging 48.2

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