New climate-cooling molecule found

Scientists have succeeded in detecting and analyzing a new atmospheric molecule whose existence has long been suspected but never proved.
The molecules turn out to play a role in removing pollutants from the atmosphere, as well as influencing the climate. They do this by accelerating the production of sulphuric acid, which triggers cloud formation. These in turn block sunlight and cool the Earth.
The intense synchrotron light showed that the Criegee biradicals interact with other atmospheric compounds very quickly, bringing clarity to what was previously a deeply uncertain area - estimates of their reaction speed varied as much as a millionfold.

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