Atmospheric chemistry – Page 4
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ResearchSolo palladium in catalytic copper alloy reduces nitric oxide from vehicle exhausts
First system to work at low temperatures that doesn’t generate nitrous oxide
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ResearchCorrections promise more accurate CO2 measurements from space
Improvements to cavity ring-down spectroscopy could also benefit quantum science
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FeatureFiring up an air pollution problem
Wild fires adversely affect air quality nearby and far beyond. Nina Notman investigates this escalating problem
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ReviewClearing the Air: The Beginning and the End of Air Pollution
Jamie Durrani reviews Tim Smedley’s new book
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ResearchChina identified as source of unexpected rise in CFC emissions
New production believed to be responsible for increasing levels of outlawed ozone-depleting chemical
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ResearchCutting ammonia pollution may lead to more acid rain in China
Any effort to target ammonia should aim to reduce sulfur dioxide pollution at the same time
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PodcastNitrogenase
The mysterious enzyme that can beat the world’s biggest chemical process when it comes to breaking the dinitrogen triple bond
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ResearchChloroform poses new threat to ozone recovery
Models of observational data trace anthropogenic emissions back to China
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ReviewThe Weather Detective: Rediscovering Nature’s Secret Signs
Peter Wohlleben’s book shows urbanites how to re-connect with nature through the weather
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ResearchChinese cave holds carbon dating ‘Holy Grail’
Carbon-14 measurements from stalagmites takes carbon dating back as far as it can go
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PodcastLow-background steel
Post-nuclear steel is a little bit radioactive, so for some specialist jobs we need to find a source of steel from before the bomb
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NewsOzone healing confirmed in Montreal Protocol assessment
Latest projections say ozone levels in the stratosphere will recover around the middle of the century
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ResearchCarbon dioxide screwing mechanism in porous crystal unravelled
Solid-state NMR used to probe dynamics of selective gas uptake
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NewsNegative emissions technology needed to remove CO2 and head off climate change
Technologies that pull carbon dioxide from the air and sequester it are economically viable and part of package of measures to mitigate climate change, US National Academies says
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FeatureThe atmospheric nitrogen question
Pollutants, key atmospheric components and vital fertilisers: nitrogen compounds are all of these, as Emma Davies finds out
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ResearchPaint achieves seemingly impossible by cooling buildings in direct sun
Coating offers a route to zero-carbon air conditioning
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FeatureOzone: the hole story
There is still a long road to recovery for the ozone layer, Emma Stoye finds
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ResearchExoplanet with heavy metal atmosphere discovered
Iron found for the first time in gas giant’s ultra-hot atmosphere
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ResearchIllegal CFC production may be slowing ozone layer recovery
Surprise increase in trichlorofluoromethane emissions linked to east Asia
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ResearchRotten egg smell surrounds Uranus
Seventh planet’s topmost cloud layer is composed of hydrogen sulfide