HE Permanent Representative of the State of Qatar to the United Nations Sheikha Alya Ahmed bin Saif Al-Thani, as Vice-Chairperson of the 73rd session of the UN General Assembly, chaired a meeting on 'Climate and Sustainable Development for All', which was attended by heads of state, government, ministers and representatives of youth organizations. HE Maria Fernanda Espinosa is Chairperson of the 73rd session of the UN General Assembly.