Climate change was one of the most contentious issues at the G-20 gathering. (Photo: AFP)

Osaka: Nineteen members of the G-20, without the United States, agreed Saturday to the "irreversibility" of the Paris climate deal and pledged its full implementation, after two days of talks.

The language in the final statement after the summit in Japan's Osaka mirrors that agreed during last year's G-20, but was hard-won after objections from the United States.

Tags: