Dealing with various climate change-related issues is likely to be one of the top points of discussion at the Group of 20 Leaders' Summit in Osaka next June, Jacques Attali, one of the world's most prominent nongovernmental organization leaders, said in an interview with The Japan Times on Tuesday.

Attali, who worked as a special adviser to former French President Francois Mitterrand, is the founder and president of Positive Planet, an NGO that works in France and 35 countries to create conditions for sustainable development. Attali was visiting Hiroshima to attend the two-day World Business Conference for World Peace through Tuesday, which is supported by The Japan Times.

Positive Planet has strong ties with the G20, although Attali is both a critic of, and adviser to, the forum.