Ninemsn: To an earlier generation, Kiribati was known for the bloody World War II battle on its main atoll, Tarawa. Today, some know it as the nation that may soon sink beneath the waves. In reality, many Australians have probably never heard of the tiny Pacific nation. Yet there are those who say our lifestyle is negatively affecting the lives of its 100,000 Micronesian inhabitants. So it was a fitting location for a climate change summit, where international delegates signed the Ambo Declaration -…