WMO air quality and climate bulletin 2022
The WMO Air Quality and Climate Bulletin reports annually on the state of air quality and its connections to climate change, reflecting on the geographical distribution of and changes in the levels of
Atmosphere
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Less acidic rain
Calcium particles neutralise acid in the atmosphere
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The air is heavy
Particulate matter, nitrogen dioxide and ozone: Delhi’s air is already overcast with a very high concentration of these pollutants. Exposure to them could leave you breathless
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Satellite images help monitor ocean warmth
Meteorologists can now use satellite pictures to keep track of hot spots in the Pacific.
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Atmospheric chemistry shifts blame around
Research in atmospheric sciences is booming because of the impending threat to4he world's climate. Every month there is a new study showing new sources of greenhouse gases rages that are capable of producing global warming or disputing earlier
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Lack of options
Neither improving diesel quality nor upgrading engine technology help to avert the threat posed by toxic particulate emissions from diesel vehicles. The only option is to ban registration of new diesel cars
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Nature cares
Nature has proved to be much more successful in removing excess carbon monoxide from atmosphere
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Evolving into the danger zone
The Earth's atmosphere has been evolving ever since the planet was formed about 4.5 billion years ago. But, with industrialisation, human activity, for the first time, threatens irreversible climate changes
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Sun plays marginal role in global warming
Variations in solar radiations contribute little to global warming and researchers say efforts to check the phenomenon must focus on greenhouse gases.
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Gasping for breath
Entire tree species face the threat of extinction from the increasing concentration of atmospheric carbon dioxide
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Reading the future in the past
Geological records of how climate responded to changes in the atmosphere in the past enables scientists to model future climate behaviour in response to current atmospheric changes