Natural environment – Page 18
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ResearchPhotosynthesis-free route to oxygen gives early Earth atmosphere clues
Oxygen can be produced from carbon dioxide using UV radiation
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ResearchNitrogen dioxide and ozone: a sinister synergy
New insight into the mechanisms by which nitrogen dioxide and ozone damage the human respiratory tract
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ResearchWaste office paper comes to a sticky end
Paper cannot be recycled into new paper indefinitely, so scientists are searching for alternative options
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New source of hydroxyl radicals found in the clouds
Ozone chemistry at air–water interface may increase radical formation four-fold
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ResearchPlant plastics reach for the stars
Star-shaped additives transform rice starch into a useful transparent plastic
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ResearchUranium complexes unlock feedstock potential of carbon dioxide
Carbon dioxide and depleted uranium both put to good use
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ResearchAlloy primed for phase change from CD to TV
Uniting optical and electronic properties could bring compact disc material into smart contact lenses
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ResearchOut of the frying pan and into the atmosphere
Air–water interface kinetics are key to understanding the persistence of fatty acid aerosols
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ResearchEarth’s earliest continent formed like Iceland
Newly discovered rocks shed light on the geology of Earth’s first continental crust
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ResearchChemistry calculations reveal Earth's inner core
Higher levels of oxygen suggest early Earth may have been hotter than some model predict
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ResearchDinosaur mass extinction may have been triggered by acid rain
Asteroid impact could have produced enough sulfur trioxide to dramatically lower ocean pH
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ResearchWhere did Earth’s water come from?
Study of meteorite isotope ratios suggests Earth’s water was delivered by express asteroid rather than comets
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ResearchFluorine finally found in nature
Mystery of nasty niff from ‘fetid fluorite’ minerals is solved - it’s all down to the fluorine it releases