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A Question of Clouds
Why evenings are colder when there’s no cloud cover. ÃÛÑ¿´«Ã½ science expert Andrew Craig explains how clouds help keep the ground below them warm.
Also on the programme: is spontaneous combustion a real phenomenon?
ÃÛÑ¿´«Ã½ World Service Archive
This programme was restored as part of the World Service archive project