Press Trust of India: Saying little has changed regarding global warming, Nobel Peace Prize-winner Al Gore has said he would make a sequel to his Oscar-winning documentary, ‘An Inconvenient Truth’. The former US Vice President said: "I will make a sequel to the 2006 documentary ‘An Inconvenient Truth’ and despite earths ‘rising fever’, I am hopeful for a happy ending". However, he admitted that the situation had instead got worse since his documentary hit cinemas in 2006. Gore …