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Emissions of potent GHG HFC-23 have grown, contradicting reports of huge reductions

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Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. This gas has very few industrial applications. This would have been a big win for climate. Resources.

Emissions 199
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Researchers Discover New Chemistry for Ozone Formation; Not Yet Monitored or Incorporated into Atmospheric Models

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A) shows the base case peak concentrations for O 3 (ozone), ClNO and HCl in parts-per-billion by volume (ppbv). (B) Under extreme circumstances, this previously unknown chemistry could account for up to 40 parts per billion (ppb) of ozone; the current US Environmental Protection Agency (EPA) 8-hour average standard is 75 ppb.

Ozone 150
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Researchers suggest that air quality tests need simplifying to help reduce dangerous emissions

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The production of air pollution from motor vehicles, industrial power plants, and fossil fuel emissions are determined by complex chemical reactions. The researchers compared current techniques used to describe atmospheric chemical reactions against more historical techniques. Stockwell, Emily Saunders, Wendy S. Goliff & Rosa M.

Emissions 170
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Study Finds Current Swedish Biofuels Offer Major Climate Benefits; Biogas from Manure the Best

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A study by researchers at Lund University in Sweden found that Swedish biofuels produce between 65 and 148% less greenhouse gas emissions than gasoline and diesel, even when direct and indirect land use changes are taken into account. Pål Börjesson, researcher in Environment and Energy Systems at Lund University.

Climate 170
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Life cycle analysis of three battery chemistries for PHEVs and BEVs; environmental impacts higher than expected

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Researchers from the Norwegian University of Science and Technology (NTNU) have performed life cycle assessments (LCA) of three batteries for plug-in hybrid (PHEV) and full performance battery electric (BEV) vehicles. Flow diagram of the battery system, defined by the functional unit of 50 MJ stored and delivered to the powertrain.

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UC Davis Begins $2.8M Studies on Impacts of Escaped Nitrogen

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University of California, Davis researchers will receive $2.8 Wastes from cattle, chickens and other livestock include nitrogen. million in new grants to study the use and impacts of escaped nitrogen from agricultural production. But excess nitrogen is emitted from soils, seeps into groundwater and runs off into surface waters.

Davis 240
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The importance of considering non-exhaust traffic emissions; the role of EVs

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They collected 160 samples on 38 days between February and September 2009 at a curbside and an urban background station in the urban/industrial Ruhr area. As reported earlier here ( earlier post ) a recent literature review by a team from the University of Edinburgh (Timmers et al. Air Waste Manag. The role of EVs. Gehring, R.,

Exhaust 150