Atmospheric chemistry – Page 2
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Feature
A lightning burst of chemistry
Trying to understand the chemistry that occurs around immensely powerful but short-lived lightning bolts is a feat in itself. James Mitchell Crow looks for a flash of inspiration
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News
Can negative emissions technology clear the air without costing the Earth?
Counting the energy cost of capturing carbon dioxide
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Research
Hydrotrioxides are in the air
10 million tonnes of the highly reactive three-oxygen compounds could form in Earth’s atmosphere every year
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Research
Atmospheric helium increasing at a measurable rate
Air samples revealed a rate of increase beyond expected natural variations
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Opinion
Susan Solomon: ‘We had to literally stand out on the roof’
The atmospheric chemist on battling the elements in Antarctica and preserving the integrity of science
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Research
Spotlight shone on sped up photochemical reactions in droplets
Light can produce ‘hot spots’ in aerosols that supercharge reaction rates
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Feature
The secrets of the sulfur cycle
There’s still a lot we don’t know about the biogeochemical cycling of sulfur, and this could impact our ability to correctly model the climate. Rachel Brazil talks to the researchers trying to fill in the gaps.
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Research
Massive Australian wildfires caused new damage to the ozone layer
Smoke particles caused a drop in chlorine-binding chemicals that set back the ozone layer’s recovery by 10 years
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Research
Simulations reveal how manipulating ocean acidity could lower atmospheric carbon dioxide levels
Strategy would see surface acidity pumped into deeper ocean layers
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Research
Rising 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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Feature
Thomas 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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News
US 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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News
Nasa 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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Opinion
Reverse combustion is preparing for takeoff
Where burning hydrocarbons is unavoidable, creating them from atmospheric carbon is a promising option
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Business
Deadly explosion and fire at chemicals park in Germany
At least 2 dead and 31 injured when an explosion led to a solvent tank fire in Leverkusen
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Opinion
Putting combustion into reverse
Unburning carbon dioxide economically and at scale is a tough problem, but potentially world-changing
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Business
Industry tightens emissions reduction targets
As COP26 approaches, many firms are announcing ambitious climate goals. But are they achievable?
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Research
Historical lead from petrol still poisons London’s air 20 years after its ban
Two decades after leaded petrol was banned in the UK, the toxic metal still hangs around London’s dusty roads – and it’s not going away
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Feature
How should chemical mixtures be regulated?
Nina Notman explores the challenge of assessing and managing risk from the coincidental chemical mixtures to which humans and the environment are exposed
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News
How Covid gave the world a lesson in tackling air pollution
The pandemic has given atmospheric chemists the opportunity to study pollution and carbon emissions like never before