Environmental science – Page 20
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ResearchRising ozone pollution threatens east Asia’s cereal crops
Losses of wheat, rice and maize add up to $63 billion every year
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ResearchAncient Mars meteorites’ organic chemistry cracked – and it’s not alien microbes
Study uncovers geochemical processes that formed organic compounds millions of years ago, at a time when the red planet still had liquid water
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ResearchSignificant levels of PFAS found in antifogging sprays and cloths for glasses
High levels of PFAS chemicals, including two largely unknown ones, detected in products to demist glasses that have become widely used during the pandemic
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FeatureHow elements are made beyond the stars
Tim Wogan looks at what recent astronomical discoveries have added to our understanding of stellar nucleosynthesis, and the mysteries that remain
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ResearchComets’ green colour comes from dicarbon dissociation, experiments confirm
First direct observation of C2 photodissociation explains why some comets have a green halo
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ResearchMysterious nitrogen ice patterns on Pluto linked to sublimation
Scientists use modelling to show that sublimation of nitrogen ice fuels convection in Pluto’s Sputnik Planitia impact crater by cooling its surface
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FeatureThomas Midgley and the toxic legacy of leaded fuel
Leaded petrol was around for 100 years, and the campaign against it for almost as long. Mike Sutton reveals its history
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Business2021 Chemicals industry roundup
Supply chain problems, rising raw material and energy costs challenge an industry trying to recover from the pandemic
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NewsUS National Academies proposes $125 million ocean carbon sequestration effort
Proposed programme would study the potential of various ocean-based carbon dioxide removal strategies to address climate change
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ResearchThe sun may have been the surprising source of Earth’s water
Dust grains pounded by solar wind and then delivered to Earth are a significant source of the planet’s oceans
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NewsAirbus to build Ariel telescope to examine exoplanets' chemical composition
European Space Agency’s mission to study chemical composition of 1000 exoplanets will launch in 2029
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NewsJames Webb Space Telescope poised to provide insight into chemical evolution of universe
Launch later this month could provide new understanding of exoplanets and the origins of heavier elements
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FeatureThe labs pointing to a greener future for Africa
Tackling climate is not just a job for scientists in more developed countries. Munyaradzi Makoni talks to researchers in Kenya and South Africa to find out more
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NewsNasa makes plans to return to Venus to probe the hellish chemistry of its atmosphere
Probe set to launch in 2029 may be able to establish whether life ever existed there and answer the phosphine question
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OpinionA clouded view of industry emissions
Standards and auditing are sorely needed if emissions targets are to be upheld
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ResearchIodine ion drive propels satellite in space for the first time
Halogen could provide a cheaper, more efficient alternative to xenon
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NewsCop26 deal promises more action but 1.5°C target still looks out of reach
Agreements on coal, methane and deforestation are overshadowed by estimate that the world is on track for 2.4°C of warming by the end of the century
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OpinionThe seabirds saved by synthetic chemistry
How an agricultural demand for bird poo almost destroyed an island group’s ecosystem
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OpinionReverse combustion is preparing for takeoff
Where burning hydrocarbons is unavoidable, creating them from atmospheric carbon is a promising option