Agence France-Presse: Seventy French-speaking nations and regional governments pledged to help cut global greenhouse gas emissions in half by 2050, at the close of the 12th Francophonie summit on Sunday. The group reaffirmed its backing of the United Nations Framework Convention on Climate Change and the Kyoto Protocol. And it said it would draft a “concerted francophone position” for upcoming climate change conferences in Poznan in December and Copenhagen in 2009. The two meetings are to try …