Reuters: China’s President Hu Jintao will present China’s new plans for tackling global warming at a United Nations summit on climate change later this month, the country’s senior negotiator said on Tuesday. “He will make an important speech,” Xie Zhenhua told reporters ahead of Hu’s trip next week to the United Nations and the G20 summit of major rich and developing economies in Pittsburgh. Hu “will announce the next policies, measures and actions that China is going to take,” added …