Atmospheric chemistry – Page 4
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BusinessQuestions surround deadly Beirut blast
Ammonium nitrate explosion that killed at least 135 appears to have been caused by poorly-stored cargo from an abandoned vessel
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FeatureThe complex chemistry of fire
Despite its ubiquity in human life, chemists have still barely unlocked what’s happening amid the flames. Kit Chapman reports
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ResearchHow the products of fire control the formation of snow
Nadine Borduas-Dedekind brings an organic chemist’s arrow-pushing insight to reactions in the atmosphere
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NewsCan negative emission technologies overcome climate catastrophe?
Reforestation, carbon capture and storage, direct air capture are among the ‘Nets’ that could remove CO2 from the atmosphere
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ResearchCFCs responsible for half of Arctic sea-ice loss
Halogenated compounds responsible for one third of global warming in the late 20th century
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BusinessLeaking filter caused deadly explosion at US plant
Blast that killed one and injured 30 others at a KMCO facility in Texas was caused by hole in pipe component
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ResearchIron in Earth’s magma oceans forged diamonds deep underground
Findings could also explain differences between the atmospheres of different planets
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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