PORT LOUIS, MAURITIUS:  South Africa's Vice President Jakob Zuma addresses, 13 January 2005 the plenary session of the International UN summit on Developing Small Island States in Port Louis, Mauritius. UN Secretary General Kofi Annan Annan called Thursday for 'decisive measures' to address climate change and said a global early warning system must be set up in the wake of last month's Asian tsunami disaster. The conference is looking at ways to help the world's most vulnerable states cope with hazards and disasters.  AFP PHOTO/MARCO LONGARI  (Photo credit should read MARCO LONGARI/AFP/Getty Images)