Guardian: Australia needs to take more of a global leadership role on climate change action to help its Pacific island neighbours avoid being swamped by rising sea levels and triggering a surge in climate refugees, according to the vice-president of the Marshall Islands. Tony de Brum, the minister-in-assistance to the president of the Marshall Islands, said that major emitters need to "re-think their ambition levels" over climate change and urged Australia to focus on the benefits of emissions trading. De...