Sydney Morning Herald: PRIME Minister Kevin Rudd will announce on February 1 if Australia will try to achieve an ambitious 2020 target to cut its greenhouse gas emissions as part of the new global agreement on climate change. A cut in emissions of this size would have a major effect on Australia’s use of coal-fired electricity and force a faster move to clean energy. Yesterday – as the Copenhagen climate summit lurched into its 13th day, and four hours after its scheduled close – representatives of …