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NC State Researchers Developing Ozonolysis Pretreatment for Energy Grass Feedstocks

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Researchers at North Carolina State University are developing an ozone-based pre-treatment technique (ozonolysis) to release sugars from the energy grass miscanthus for production into renewable fuels or chemicals with minimal generation of chemical waste streams and degradation of the carbohydrate components.

Ozone 170
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US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

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succeeded in isolating the simplest CI and reported direct kinetic measurements of its reactions with water, NO, NO 2 , and SO 2. Dr. George Marston from the University of Reading (UK) notes that: The Criegee intermediates (CIs) are central to understanding the reactions of ozone with unsaturated compounds. Welz et al. Carl Percival.

Ozone 268
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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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2009), reproduced from Ramanathan and Feng (2008) Click to enlarge. HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. The Montreal Protocol has already delayed climate change by seven to 12 years, and put the ozone layer on the path to recovery later this century. Ramanathan.

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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

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The government assisted the shift by giving sugar companies subsidized loans to build ethanol plants, as well as guaranteeing prices for their ethanol products. The growth in hydrous ethanol, which uses a blend of 94-95% ethanol to 5-6% water, rapidly increased during the 1980s, with consumption peaking in 1989.

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UNEP Report Calls for More Sophisticated Approach to Developing Biofuels; Limitations of Current LCA Studies

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Here, RME show advantages for primary energy and GHG, but disadvantages in terms of acidification, eutrophication and ozone depletion. The life-cycle-wide emissions of nutrients depend critically on the application and losses of fertilizers during the agricultural production of biofuel feedstocks. Source: “Assessing Biofuels”.

Ozone 186
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Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

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Warming of the air by any chemical, including soot, enhances natural surface emissions of water vapor [e.g., 2008] and methane [Schutz et al., 1990; Anisimov, 2007] and chemical production of ozone in already-polluted locations [Jacobson, 2008b]. Dessler et al., Guenther et al., 1995] and NO.

Global 230
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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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Significant climate anomalies 2008/2009. Losses of tropical and temperate mountain glaciers affecting perhaps 20-25% of the human population in terms of drinking water, irrigation and hydro-power. In 2008, the minimum ice extent was 9% greater than in 2007, but still the second lowest on record. Click to enlarge. Earlier post.).