Japan will host its first Group of 20 summit in 2019, a G-20 source said Saturday as the leaders of the advanced and emerging economies wrapped up a conference focused on trade and climate change.

Argentina plans to assume the presidency of the G-20 next year. The latest round of the forum for global issues was hosted by the German port city of Hamburg through Saturday.

Germany had the daunting task of finding common ground over divisive aspects of trade and climate change policy to compile the summit's joint statement.