Pointless virtue flagging

One of the daftest things of the year has to be the concept of a ‘sustainable’ fly-past on a royal occasion such as trooping the colour on the King’s birthday.
    We were told the Red Arrows used ‘sustainable’ fuel and vegetable oil for their fly-past. And, no doubt, cost the nation a packet compared to using fossil fuels at a time when using them here makes bugger all difference to the global climate whilst China, India and the rest are burning coal in power stations at a furious rate.