NEW YORK, Sep 24, Sept. 24 -- World leaders and senior officials are gathering at the United Nations as the 81st UN General Assembly continues its high-level week, with conflicts, climate change, economic uncertainty, artificial intelligence and international cooperation among the major issues under discussion. The UN's high-level week runs from September 22 to 28, bringing heads of state and government together for the annual General Debate and a series of high-level meetings. On Thursday, the UN is holding a high-level plenary meeting focused on the threats posed by rising sea levels. The meeting is aimed at strengthening international cooperation and encouraging practical action to protect vulnerable coastal and island communities. Art...