Environment
High-flying microplastics could pose a threat to the ozone layer
Experiments suggest microplastic fragments with irregular shapes settle more slowly than spherical ones and may reach the stratosphere
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Environment
Cleaner shipping emissions may have warmed the planet 鈥� but only a bit
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Space
We are finally closing in on the cosmic origins of the 鈥淥MG particle鈥�
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Technology
Mysterious sounds in stratosphere can’t be traced to any known source
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Environment
Ozone-destroying CFC chemicals are on the rise again despite ban
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Environment
Puzzling methane rise in 2020 linked to pandemic lockdown effects
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How do humans affect the nitrogen cycle?
Environment
Lowest level of the atmosphere getting thicker due to climate change
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Environment
Aircraft contrails are a climate menace. Can we rid the sky of them?
Features
Environment
Most life on Earth will be killed by lack of oxygen in a billion years
One billion years from now, Earth鈥檚 atmosphere is projected to contain a million times less oxygen than today, making it uninhabitable to complex aerobic life
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Technology
Sunlight could power micro-aircraft flying above the stratosphere
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Environment
Godzilla Sahara dust storm linked to melting Arctic sea ice
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Environment
Rivers of air in the sky are melting huge patches of Antarctic sea ice
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Environment
We should rewild the sky to restore the atmosphere to its former glory
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