Environmental science – Page 51
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ResearchGreenland ice sheet recoups subliming water vapour
Newly discovered part of the water cycle acts to conserve sheet mass
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ResearchScientists claim to have seen ‘new state’ of water
Scepticism that water molecules with delocalised protons can be described as an unknown phase of water
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ResearchMixed outlook for ethanol–petrol blends
London study says incorporating biofuels into petrol supplies could increase acetaldehyde levels in the air
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PodcastCadmium telluride
It may not be the best material for solar cells but it has some distinct advantages
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News
Countries ink Paris climate change agreement
Nearly 200 countries signed the global climate treaty that aims to limit temperature rises to ‘well below’ 2°C
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ResearchEarthly xenon’s asteroid origins reveal planet’s genesis
Discovery that atmospheric xenon is unrelated to that in the mantle hints at two separate extra-terrestrial ‘deliveries’ of the element
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FeaturePlastic problems
Tiny pieces of plastic may be doing as much harm in our oceans and waterways as the big stuff, finds Nina Notman
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ResearchCassini finds needle in a haystack investigating interstellar dust around Saturn
Alien dust provides evidence for solar system passing through giant interstellar cloud
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ResearchCaging chemical weapons
Supramolecular cubes trap and flag nerve agents using the hydrophobic effect
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ResearchBuilding blocks of life made in space ice simulations
Complex sugars – including the ‘backbone’ of RNA – have been created in lab-made interstellar ice
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ResearchBacterial behaviour a slippery slope to sewer fatbergs
Microorganisms in grease traps could magnify fat, oil and grease deposits in sewers
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NewsEU plans tighter controls on BPA
Proposal would reduce the migration limit of bisphenol A in food packaging by 90%
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NewsBP’s long legal battle over Deepwater disaster ends
Judge finalises BP’s $20 billion settlement over Gulf of Mexico oil spill
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OpinionWhy salty water foams
Philip Ball seeks the answer to a question more complex than it appears
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NewsCadmium and lead in costume jewellery prompt concern
Extremely high levels of toxic metals in children’s jewellery is causing alarm among US and Canadian scientists
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OpinionToxicity is a hazardous waste
We must teach students how to avoid environmental impact rather than accept itas an inherent part of chemistry, argues John Warner
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ResearchSilver nanoparticles lost in the first wash
Swiss scientists investigate nanosilver release from textiles