Environmental science – Page 24
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ResearchNoble metals dissolved without aqua regia
Decades-old study inspires acidic salt solutions for recovering gold and platinum group metals from catalytic waste
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ResearchOptions expanded for origin of Earth’s water
Enstatite chondrite meteroites contain enough hydrogen to have supplied three to five times the total mass of water in Earth’s oceans
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BusinessUncovering the sources of contaminated sanitisers
Methanol and 1-propanol could get into hand gels by unintentional or deliberate adulteration
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NewsRecalibration is the biggest shake-up in the carbon dating world for seven years
Overhaul will improve accuracy and push back how far samples can be dated by 5000 years
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NewsEPA settles Gold King mine disaster five years later
Utah state will receive $220 million as part of settlement over 2015 accident that spilled toxic waste into waterways
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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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NewsPerseverance rover’s suite of chemical tools will search for signs of ancient life on Mars
Upgraded probe is better equipped to investigate the red planet
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BusinessDeadly Indian incidents highlight relaxed regulations
Concern over human and environmental cost of reforms aimed at ease of doing business
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PodcastTannic acid
Tannic acid in green acorns can kill wild animals and livestock, but you can prevent poisoning with pannage pigs
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BusinessAppeals court cuts damages further in glyphosate cancer case
Judgment retains verdict that Bayer-Monsanto’s herbicide caused US man’s cancer
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OpinionLooking beyond the next wave
We need to apply lessons from Covid-19 to tackle antimicrobial resistance and climate change
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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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PodcastHexasilabenzene
Brian Clegg discovers what a six-membered silicon ring can tell us about alien life
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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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BusinessBayer commits over $10bn to resolve legacy Monsanto lawsuits
Agreement settles about 75% of Roundup-related cases and resolves PCB and dicamba litigation
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FeatureAtmospheric water harvesting
With drought threatening many parts of the world, Nina Notman explores technologies for sucking water out of thin air
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FeatureClearing the air
Nina Notman explores the role technology can play in cleaning pollutants out of air before we breathe them in
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