UNITED NATIONS (AP) — Racism, the climate crisis and the world’s worsening divisions will take center stage at the U.N. meeting of world leaders, a day after Secretary-General Antonio Guterres issued a grim warning that “we are on the edge of an abyss.” For the first time since the COVID-19 pandemic began, more than two dozen world leaders appeared in person at the U.N. General Assembly on the opening day of their annual high-level meeting. The atmosphere was somber, angry and dire. China’s President Xi Jinping warned that “the world has entered a period of new turbulence and transformation.”