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New study suggests reported PAH emissions in oil sands region greatly underestimated

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Results from a new modeling assessment of contamination in the Athabasca Oil Sands Region (AOSR) suggest that officially reported emissions of polycyclic aromatic hydrocarbons (PAHs) in that region have been greatly underestimated. Accounting for evaporative emissions (e.g., Average emissions densities from Shen et al.

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New study finds GHG emissions from palm oil production significantly underestimated; palm oil biofuels could be more climate-damaging than oil sands fuels

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When peat swamps are drained for agriculture, the peat begins to decompose, and is an enormous source of carbon emissions. Based on visual interpretation of high-resolution (30 m) satellite images, a new study in the journal Global Change Biology: Bioenergy determined that industrial plantations covered over 3.1 —Miettinen et al.

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Oil sands GHG lifecycle study using operating data finds lower emitting oil sands cases outperform higher emitting conventional crude cases; a call for more sophisticated tools and reporting

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Well-to-wheel (WTW) greenhouse gas emissions for in situ SAGD and surface mining pathways generated employing GHOST/TIAX/ GHGenius combination and comparison with SAGD, mining and conventional crude oil literature pathways (all results are on a HHV basis). WTW emissions for pathways vary by more than ±10% (e.g.,

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New lifecycle analysis of WTW GHG emissions of diesel and gasoline refined in US from Canadian oil sands crude

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In a new, comprehensive study, a team from Argonne National Laboratory, Stanford University and UC Davis ITS has estimated the well-to-wheels (WTW) GHG emissions of US production of gasoline and diesel sourced from Canadian oil sands. The study is published in the ACS journal Environmental Science & Technology.

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

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Full-fuel-cycle GHG emissions estimates for reformulated gasoline pathways by LCA study. Nominal value of 70 g CO 2 /MJ for combustion emissions is applied evenly across all studies. He found that the variation in oil sands GHG estimates is due to a variety of causes. Credit: ACS, Brandt 2012.

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Study concludes permanent loss of peatlands in open-pit oil sands mining adds significantly to carbon burden of oil sands production

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Researchers at the University of Alberta (Canada) have quantified the transformation of the boreal landscape by open-pit oil sands mining in Alberta, Canada to evaluate its effect on carbon storage and sequestration. t of CO 2 lost, as much as 7-y worth of mining and upgrading emissions at 2010 production levels.

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U Calgary study finds oil shale most energy intensive upgraded fuel followed by in-situ-produced bitumen from oil sands

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A team at the University of Calgary (Canada) has compared the energy intensities and lifecycle GHG emissions of unconventional oils (oil sands and oil shale) alongside shale gas, coal, lignite, wood and conventional oil and gas. Earlier post.).

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