U.S. and China speak in unison on climate change, but each has its own agenda. U.S. President Joe Biden and Chinese President Xi Jinping shake hands as they meet in Woodside, a neighborhood of San Francisco, U.S., on Sept. 15, 2018. <연합뉴스>[Business Post] The US and Chinese leaders, who met face-to-face for the first time in a year, spoke with one voice on climate change...