Interesting story in the media about temperatures on public transport on
Wednesday 'the hottest day (so far)'. It appears the tube is actually cooler
than mainline trains (except those lovely C2C trains) or the top of a
double-decker bus, which was hottest.

Perhaps people should be complaining more about getting air-conditioning for
buses, where the extra space could be found, rather than moaning about how
hot the tube is?