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CSIRO study finds ozone uptake in oceans much lower than previously thought

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CSIRO scientists have developed a new way to account for ozone in computer simulations of the climate. This latest modeling shows that the oceans take much less ozone out of the atmosphere than previously thought. Ozone (O 3 ) is formed by reactions of chemicals such as nitrogen oxides and volatile organic compounds—i.e.,

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Study Finds Ozone, Nitrogen Change the Way Rising CO2 Affects Earths Water

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Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways. Credit: NASA. Click to enlarge.

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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

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The program determines the environmental balance of vehicles with different size classes and powertrains, and presents the results in comparative graphics. Depletion of fresh water reserves [m 3 ]. Deterioration of the ozone layer [kg CFC-11-eq.]. Depletion of fossil energy resources [kg oil-eq.]. in review).

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UNEP study: small number of measures targeting black carbon and tropospheric ozone could yield immediate climate benefits

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Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climate change. Reducing black carbon and tropospheric ozone now will slow the rate of climate change within the first half of this century, the study said.

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German-Chilean consortium investigating new ways of reducing arsenic in copper concentrates: ReAK

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In Chile, the current procedure is to capture the gas, dissolve it in sulfuric acid and then transform it into solid calcium arsenate or calcium arsenite in a process known as precipitation. Other project partners are also evaluating UV- and ozone-assisted as well as microbial oxidation processes. —Anna-Lisa Bachmann.

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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.

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Japan Researchers Use Liquefied DME to Extract Oil from Algae at Room Temperature at High Yield

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The process was presented during the 90 th Springtime Annual Meeting of The Chemical Society of Japan (CSJ), 26-29 March, 2010. Unlike other ethers, DME does not form peroxides, is non-toxic, has no effect on global warming nor ozone depletion and can be considered an environmentally friendly solvent.

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