The city of Izium in northeastern Ukraine was under Russian occupation for about six months. In September, Ukrainian forces managed to liberate the city, but the hard work of bringing it back to normal has only begun. And Chinese President Xi Jinping is reentering the international stage at the G-20 summit. It's his first trip abroad in three years and comes after he secured a historic third term as China's president. Also, at the UN climate summit in Egypt this week, developing countries are pushing to double the funding for climate adaptation, debt relief and changes to the global financial system. Plus, not everyone in Iran wants a revolution.

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