Sydney Morning Herald: In the lead-up to the Copenhagen climate summit, Al Gore says non-violent civil disobedience is justified, writes Oliver Burkeman. CLIMATE-CHANGE activist Al Gore predicts a rise in civil disobedience against fossil-fuel polluters unless drastic action is taken over global warming. The former US vice-president has sought to inject fresh momentum into the Copenhagen summit, saying he is certain President Barack Obama will attend. Amid increasing incidents of climate …