Reuters: Japan said on Sunday it would favor the Group of Seven major industrial democracies setting their own target for reducing carbon dioxide emissions in a boost for efforts to combat global warming. A spokesman for Japanese Prime Minister Shinzo Abe, speaking after he met French President Francois Hollande, who will host a U.N. summit on fighting climate change later this year, said when asked whether the G7 should set its own specific goal: "The best scenario would be yes but... let's wait (until)...