"... considerably advances global warming"

Last week, I enthused about Christianne Stotijn's recital in the Cheltenham Music Festival. Earlier this year, I now learn, a Times reporter described her as "in a class apart... delivers her songs with a lyrical glow that considerably advances global warming."

I had been reflecting since the Festival on its likely carbon footprint. Has any attempt been made to calculate this I wonder? In particular in terms of the transport of audience members and performers - like Ms. Stotijn, from Holland - to and from Cheltenham. Are international festivals sustainable in terms of climate change and peak oil? On the analagous issue of holidays abroad, I shall be listening to the Moral Maze tonight with some interest. Incidentally, hands up, my photograph was taken in Nicosia!