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Tag: Chemistry
  1. New research reveals 2010 Montreal Protocol prevented rapid acceleration of climate change

    According to a new study published in the journal Nature, the global ban of chlorofluorocarbons and other ozone-depleting substances prescribed by the 1987 Montreal Protocol and its subsequent amendments has prevented the eventual collapse of the ozone layer, thereby shielding vegetation from harmful ultraviolet radiation.

    • Air Quality

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  2. Scientists decipher mechanism for formic acid formation

    An international team of researchers has determined the chemical processes behind the formation of atmospheric formic acid, which will lead to improved weather and climate models.

    • Air Quality

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  3. Satellite image of bushfire smoke over eastern Australia.

    Smoke from massive Australian bushfires warmed the stratosphere

    Australian fires in 2019 and 2020 injected almost 1 million metric tons of smoke into the stratosphere, causing it to warm and likely contributing to a large and persistent ozone hole.

    • Air Quality,
    • Climate

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  4. Smog in Beijing

    COVID-19 lockdowns linked to pollution spikes in some cities

    Lockdowns last year in response to COVID-19 resulted in drastic cuts to emissions, especially from vehicle tailpipes, and yet some urban areas saw a paradoxical spike in ozone air pollution.

    • Air Quality

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  5. Photo of city traffic

    Ozone pollution levels dropped early in pandemic

    Ozone in the lower atmosphere fell by 7% on average across the Northern Hemisphere, new research finds.

    • Air Quality

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