Air-con art, Carnaby style

This is how they disguise the air conditioning unit on the side of the National Magazines office near Carnaby Street - I couldn't think of a better blip as the temperature soars in London today.

It's stifling inside and out, a proper heatwave: they say today will be the hottest day of the year so far and it began with an almighty thunderstorm at 6am - I've never heard thunder so loud!