Remove 2010 Remove Climate Change Remove Ozone
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Study finds global emissions of several banned ozone-destroying CFCs are increasing

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New analysis has found increasing emissions of several ozone-depleting chemicals despite their production being banned for most uses under the Montreal Protocol—and a loophole in the rules is likely responsible. According to the researchers, emissions from these CFCs currently do not significantly threaten ozone recovery.

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Study suggests future climate changes to worsen air quality for >85% of China’s population; ~20k+ additional deaths each year

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A study by a team of researchers from China, the US and Germany suggests that future climate change may worsen air quality for more than 85% of China’s population, leading to an additional 20,000 deaths each year. and ozone exposure, respectively. and ozone exposure, respectively. Projected changes in mean annual PM 2.5

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Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

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Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. Ozone is harmful to humans at ground-level, causing pulmonary and heart disease. —Guy Brasseur.

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Study Concludes Warming Climate Will Increase Ozone Levels in Major California Air Basins; Climate Change and Regional Air Quality Are Intertwined Problems

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Illustration of projected ozone changes in the South Coast region due to climate change in 2050. Areas in orange and red could see ozone concentrations elevated by 9 to 18 parts per billion. Our study reveals that climate change and regional air pollution are intertwined problems. Click to enlarge.

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KIT study finds extraordinarily cold Arctic stratospheric winter enhanced ozone degradation above the Arctic

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Extraordinarily cold temperatures in the stratosphere during the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far, according to a study by climate researchers at KIT (Karlsruhe Institute of Technology). Their paper appears in the journal Geophysical Research Letters.

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California ARB and NOAA Collaborating in $20M Research on Interaction of Air Pollution and Climate Change; One Atmosphere Approach

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Schematic diagram of the trade-offs between the implications for regional air quality and global climate change of new policies for management of the atmosphere. The complex roles that ozone and aerosols play in the atmosphere provide examples of such trade-offs. 2010 CalNex Science and Implementation Plan. Source: NOAA.

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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.

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