Paul Chambers is to appeal against his conviction for sending a threatening message on the social media site Twitter. The trainee accountant, 26, the tweeted “Crap! Robin Hood airport is closed. You’ve got a week and a bit to get your shit together, otherwise I’m blowing the airport sky high!” On 10 May Chambers was convicted in Doncaster Crown Court, prosecutors successfully argued that the message had a “menacing character”. The defendant’s appeal is being coordinated by solicitor Allen Green — better known as the blogger Jack of Kent.