Environmental science – Page 50
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ResearchAntarctic ozone layer is on the mend
Treaty brought in to tackle CFCs has visible impact on ozone healing
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ResearchMartian manganese oxides hint at high past oxygen levels
Discovery in Mars’s rocks indicates that the planet once may once have had Earth-like levels of atmospheric oxygen
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ResearchSolar-powered desalination produces energy
Silver, silica and titania nanocomposite converts seawater into pure drinking water and hydrogen gas
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ResearchUncovering the hidden nanoparticle dangers on dusty streets
Nanoparticles from street dust contribute to potentially hazardous air pollution in mega-cities
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NewsScientists unearth one of world’s largest helium gas deposits
A new approach to helium recovery should take the guesswork out of finding this vital medical resource
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OpinionWhy US chemical regulation reform is so welcome
The Toxic Substances Control Act is just the beginning
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PodcastMethyl isocyanate
The 1984 accident at Bhopal, India, was the worst in the history of industrial chemistry. It involved a leak of methyl isocyanate
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ResearchFirst detection of chiral molecule in space
Radio telescope detects propylene oxide in a star-forming region of outer space
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NewsPriority pollutants identified in the Great Lakes
The US and Canada are targeting eight chemicals in the Great Lakes deemed dangerous to health or the environment
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NewsUnreported sources of sulfur dioxide emissions found
Satellite data highlights 39 ‘unreported and major’ man-made sources of sulfur dioxide
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NewsToxic legacy of Agent Orange lives on in Vietnam
Scientists are struggling to clean up dioxin-contaminated soil that has been linked to devastating illnesses among thousands of people
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OpinionPlastic not so fantastic
The world has a big problem with small plastics and the time to act is now
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ResearchWater gets the mille-feuille treatment
Puff pastry-style filter paper is crème de la crème of virus filtration
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ResearchLead isotopes track Roman Empire’s water supplies
Analysis reveals damage to the water network after the eruption of Vesuvius and its subsequent repair
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PodcastTetraethyl lead
For decades, automobile fuel had a dangerous additive: Tetraethyl lead. Matt Gunther explains why a toxic compound was added to our fuel
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NewsUK open to microbead ban if EU fails to act
Government may act unilaterally amid growing evidence of environmental problems
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ResearchIron-rich silicate plays cosmic matchmaker
Findings could help explain abundance of molecular hydrogen in interstellar space
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OpinionTowards a new plastics economy
Global change is needed to avert disaster, says the Ellen MacArthur Foundation