Associated Press: Island nations are the least responsible for climate change but will bear the brunt of its ill effects, Australia’s leader said Wednesday, as a group of small Pacific states called for a 45 percent cut in greenhouse gas emissions by 2020. The seven smallest island nations in the Pacific Islands Forum said deep cuts in emissions are vital as they seek to protect their low-lying countries from rising sea levels, which are eating away coastlines, polluting freshwater sources and killing …