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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Source: University of Leicester. Click to enlarge.

Ozone 255
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Study: 2/3 of aviation climate impact due to emissions other than CO2

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Negative RF (cooling) contributions arise from sulfate aerosol production. Net warming from NO x emissions is a sum over warming (short-term ozone increase) and cooling (decreases in methane and stratospheric water vapor, and a long-term decrease in ozone) terms. Pitari, M.J. Prather, R. Sausen, L.J. 2020.117834.

Climate 448
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Reducing Black Carbon Emissions and Ground-Level Ozone Would Provide Immediate Benefit Against Climate Change

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Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Besides a danger to breathe, ozone lowers crop yields.

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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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in 2018 (2000-2018 average year-over-year increase is 6.8%), continuing the increasing trend as they replace Ozone Depleting Substances (ODS) being phased out under the 1987 Montreal Protocol. Because of the enormous potential impact of these products, reducing their emissions has a disproportionate benefit to the environment.

2020 221
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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

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Deterioration of the ozone layer [kg CFC-11-eq.]. In addition, it can differentiate between a large number of fuels: Besides the common ones, we have also integrated bio- and synthetic fuels of various origins, and we have considered future technologies such as CO 2 capture and storage in hydrogen production. —Romain Sacchi.

Mariner 435
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EEA report finds most Europeans in cities still exposed to levels of air pollution exceeding WHO guidelines

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Among the findings: Concentrations of particulate matter (PM) continued to exceed the EU limit values and the WHO AQGs in large parts of Europe in 2017. 20 % of stations registered concentrations above the EU ozone (O 3 ) target value for the protection of human health. For PM with a diameter of 10 ?m

Pollution 170
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Houston-Galveston area to deploy 30 battery-electric delivery trucks

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As part of a US Department of Energy sponsored effort, local fleets will replace existing diesel delivery vehicles with all-electric medium- and heavy-duty Smith Newton trucks for daily operations in the Houston-Galveston area. Each Smith Newton will be delivered with an electric vehicle charging station (EVSE).

Houston 239