Hydroxyl scrubs the potent greenhouse gas methane from the atmosphere. But its production is linked with emissions of other ...

Nearly the entire world is breathing dirty air, as a shocking map reveals that just 17 per cent of the world's cities meet ...

Roughly 90% of methane in the troposphere is oxidised into carbon dioxide via radical reactions initiated by hydroxyl radicals. Chlorine radicals in the atmosphere also trigger methane oxidation.