Agence France Presse: The prime ministers of Japan and France said Friday they wanted to put global warming high on the agenda for the Group of Eight summit and hailed nuclear power as a way to reduce carbon emissions. Japan will host the G8 summit in the northern mountain resort of Toyako from July 7 to 9, days after France takes over the rotating presidency of the European Union. "We agreed to jointly tackle various issues facing the international community such as development in Africa and …