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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.

Ozone 218
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Study finds household and outdoor air pollution contributes to more than 5.5 million premature deaths worldwide per year

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of all global deaths) caused by outdoor fine particulate air pollution and an additional 215,000 deaths from exposure to ozone. In China, burning coal is the biggest contributor to poor air quality. Our study highlights the urgent need for even more aggressive strategies to reduce emissions from coal and from other sectors.

Pollution 150
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Test of Planet-Cooling Scheme Could Start in 2022

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Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather?

Ozone 127
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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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Because of that, soot’s contribution to global warming has been ignored completely in national and international global warming policy legislation, he said. 1990; Anisimov, 2007] and chemical production of ozone in already-polluted locations [Jacobson, 2008b]. Dessler et al., 2008] and methane [Schutz et al., Guenther et al.,

Global 230
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NASA GISS Study Finds That Methane Has an Elevated Warming Effect Due to Interactions With Aerosols

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Rather, coal power production and other industrial processes release sulfur dioxide—the same gas that billows from volcanoes—that later reacts with atmospheric molecules called hydroxyl radicals to produce sulfates as a byproduct. And hydroxyls drive long chains of reactions involving other common gases, including ozone.

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Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

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Life cycle inventories have typically been presented at global, national, or regional levels—sufficient for understanding global processes such as climate change and fossil fuel depletion, but insufficient for the analysis of local processes such as air pollution, according to the researchers.

Gasoline 236
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Abt life-cycle analysis of different Li-ion chemistries for PHEVs and EVs identifies opportunities for improving environmental profile of batteries

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Generic process flow diagram for lithium-ion batteries for vehicles (color coded to present LCI data sources). However, the GWP benefit only appears when the electricity grid relies less on coal production and more on natural gas and renewables. Source: “Application of LCA to Nanoscale Technology”. Click to enlarge.

Li-ion 210