Guido can’t quite get his head round this ‘joke’ from Jeremy Corbyn’s climate-sceptic big brother. Piers Corbyn has responded to a horrible story about a dad and his young son dying after falling through ice by writing: “TRAGIC #GlobalWarming kills! LOL”. Jezza is not the nuttiest member of the Corbyn family…

UPDATE: Piers is also promoting anti-Semitic conspiracy theories: