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Study: ozone levels higher across China than in other countries tracking the air pollutant

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In China, people breathe ozone-laden air two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new international study published in Environmental Science & Technology Letters. 2017 for one ozone metric. The inset shows ozone trends in Beijing (red) and Los Angeles (blue).

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Urban CO2 Domes May Enhance May Increase Ozone and PM, With Accompanying Increase in Mortality

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In a new study published online 10 March in the ACS journal Environmental Science and Technology , however, Stanford University professor Mark Jacobson finds that local CO 2 emissions in isolation may increase local ozone and particulate matter. Tags: Climate Change Emissions Policy. his study contradicts that assumption.

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Field study finds soot particles absorb significantly less sunlight than predicted by models; climate models may be overestimating warming by BC

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Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. —Cappa et al. Earlier post.).

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Stanford Professor Urges EPA to Include Black Carbon in Endangerment Finding

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Although black carbon from motor vehicles is already regulated under vehicle PM emission rules due to known PM health effects, such regulations still permit substantial BC emissions, and the climate effects of such emissions are significant. Immediate GHG control is still absolutely necessary to stem short and long-term climate damage.

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Study Concludes that Rocket Launches May Need Regulation to Prevent Ozone Depletion

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The global market for rocket launches may require more stringent regulation in order to prevent significant damage to Earth’s stratospheric ozone layer in the decades to come, according to a new study by researchers in California and Colorado. Darin Toohey.

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California to award $23.6M for zero-emission drayage trucks at seaports; BYD, Kenworth, Peterbilt, Volvo

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The California Climate Investment funds (generated from the GHG Cap & Trade program) were matched by approximately $16.4 The funds, from the California Climate Investments program, will reduce key criteria pollutants, greenhouse gases (GHG), petroleum usage and toxic pollution where reductions are needed most.

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Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

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Organic aerosol (OA) in the atmosphere is detrimental to human health and represents a highly uncertain forcing of climate change. The use of petroleum-derived fuels is an important source of reactive gas-phase organic carbon that provides key precursors to the formation of secondary OA (SOA) and tropospheric ozone. Earlier post.).

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