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NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

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A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere. The same ozone-loss processes occur each winter in the Arctic.

Ozone 186
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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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The long-term WHO AQG for PM 10 was exceeded at 51% of the stations and in all of the reporting countries, except Estonia, Finland and Ireland. was exceeded at 69% of the stations located in all of the reporting countries, except Estonia, Finland and Norway. The long-term WHO AQG for PM 2.5 17 % of the EU?28

Pollution 170
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Test of Planet-Cooling Scheme Could Start in 2022

Cars That Think

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? about 0.6 °C.

Ozone 118
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Neste Oil building VOCs recovery system at its refinery harbor in Porvoo

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Neste Oil is building a system for recovering emissions released when loading ships at the harbor of its Porvoo (Finland) refinery. The latter form ozone in the lower atmosphere when they react with NO x in the presence of sunlight.

Oil 199
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Emissions of Air Pollutants down in EU-27

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The downward emission trend of three main pollutants which cause ground-level ozone continued in 2007: carbon monoxide (CO) fell by 57%, non-methane volatile organic compounds (NMVOCs) were down by 47% and nitrogen oxides (NO x ) have dropped 36%. EU-27 emissions of all four pollutants were lower in 2007 than in 2006.

Pollution 236