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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.

Emissions 199
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Researchers suggest that air quality tests need simplifying to help reduce dangerous emissions

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Lead author Professor William Stockwell from the University of Texas at El Paso explains that accurate simulations of air pollutants require updated and accurate descriptions of the chemical processes for the changing chemical regimes of the atmosphere and emerging contaminants of concern. 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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New Comprehensive Lifecycle Energy and Emissions Inventory Includes Non-Operational Components; Large Aircraft Can Perform Better than Light Rail

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Mikhail Chester and Arpad Horvath inventoried on-road, rail, and air travel to determine energy consumption, greenhouse gas (GHG) emissions, and criteria air pollutant (CAP) emissions (excluding PM, lead, and ozone due to lack of data). Chester and Horvath (2009).

Light 150
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National Academies release third review of the 21st Century Truck Partnership

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These projects have brought together a wide variety of companies, the national laboratories, and universities. California’s and, potentially, EPA’s move toward further heavy-duty NO x reductions to meet National Ambient Air Quality Standards for ozone will be critical. These new targets need to be set for the research efforts.

MPG 150
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SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

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In general, biofuels made from organic waste are environmentally more benign than those from energy crops. Low-input cultivation of perennial plants, e.g. from short-rotation forestry and grasslands, may be an effective source of cellulosic biomass and provide environmental benefits (reduced pollution and lower greenhouse gas emissions).

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Here’s How We Could Brighten Clouds to Cool the Earth

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Take, for example, the tens of thousands of fossil-fueled ships that chug across the ocean, spewing plumes of pollutants that contribute to acid rain, ozone depletion, respiratory ailments, and global warming. not a replacement for reducing greenhouse gas emissions, which is imperative. Solar climate intervention is.

Climate 145