power Guardian UN Climate Summit greenhouse gas emissions parties Anderson Aitkenhead book Rocks Damning indictments broadcaster Brian Walden Lord Justice Leveson class Several observations spring society National Health Service climate change rhetoric editor Nick Robinson scientist Thomas Ferguson book Golden Rule Chatham House event truth degrees C companies Wikileaks impartiality corporations gap nature report British press business leaders things power elite Bradley Manning Julian Assange NGOs temperature rise permafrost regions methane gas Poor Democracy Arctic ice Rich Media ice sheets Liberal Journalism New Press vanguard newspaper Manchester University count balance issue ­- government scientist