Xi, Obama commit to climate deal

Two leaders hail expansion of dialogue, fruitful results so far

China and the United States have showed leadership and commitment in tackling climate-change challenges as they formally committed to joining last year's Paris Agreement on climate change on Saturday ahead of the G20 Summit.

"China and the United States have expanded dialogue and achieved fruitful results in recent years to tackle global climate challenges," said President Xi Jinping, commenting on the two countries' efforts to advance climate-change initiatives since 2014, when the two countries submitted their respective emission goals for the Paris Agreement.