BEIJING (AP) — Treasury Secretary Janet Yellen appealed to China on Saturday for cooperation on climate change and other global challenges and not to let disagreements about trade and other irritants derail relations. In a meeting with her Chinese counterpart, Vice Premier He Lifeng, Yellen defended U.S. restrictions on technology exports that rankle Beijing. She said the two governments shouldn’t let such disagreements disrupt thriving economic and financial relations. ?We also face important global challenges, such as debt distress in emerging markets and developing countries and climate change,” Yellen said. “We have a duty to both our own economies and...