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Technology

Mysterious sounds in stratosphere can't be traced to any known source

Solar-powered balloons floating 20 kilometres above ground have recorded inaudible low-frequency signals that have so far not been traced back to any known source

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Environment

Ozone-destroying CFC chemicals are on the rise again despite ban

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Empty street in London

Environment

Puzzling methane rise in 2020 linked to pandemic lockdown effects

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How do humans affect the nitrogen cycle?

Question

How do humans affect the nitrogen cycle?

orange-colored troposphere

Environment

Lowest level of the atmosphere getting thicker due to climate change

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Aircraft contrails are a climate menace. Can we rid the sky of them?

Technology

Aircraft contrails are a climate menace. Can we rid the sky of them?

Features

Earth

Environment

Most life on Earth will be killed by lack of oxygen in a billion years

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Sunlight could power micro-aircraft flying above the stratosphere

Technology

Sunlight could power micro-aircraft flying above the stratosphere

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dust cloud

Environment

Godzilla Sahara dust storm linked to melting Arctic sea ice

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sky river

Environment

Rivers of air in the sky are melting huge patches of Antarctic sea ice

Rivers of warm air transported across the atmosphere have been found to play a major role in the appearance of vast areas of open water in 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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This week's new questions

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Environment

The ozone layer is healing and redirecting wind flows around the globe

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Space

Weird clumps of air that disrupt radio signals found on Mars

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