Every year, world leaders and top diplomats descend on New York City for the annual UN General Assembly, or "UNGA," as it's known. And this year's UNGA promises to be a blockbuster week, given the array of urgent global challenges facing the United Nations. From an unending war in Ukraine, lurching into its third year, to a climate-battered planet that UN Secretary-General has described as "Global Boiling," to growing hunger and poverty worldwide, there's plenty to discuss.