Yonhap: A former head of the United Nations' climate change agency began his term on Tuesday as the new director-general of the Global Green Growth Institute (GGGI), the Seoul-initiated international green growth entity said. Yvo de Boer, who served as the executive secretary of the United Nations Framework Convention on Climate Change (UNFCCC) and the deputy director general of the Dutch environment ministry, succeeds Howard Bamsey for a four-year term, the institute said in a statement. "Multiple challenges...