Agence France-Presse: Centuries-old techniques to prevent desertification, energy wastage and other problems should be enlisted in the fight against global warming, a new UN-backed group said Wednesday. Traditional water management methods from the Sahara and Ethiopia and Iraq’s Babylon area could be used alongside newer technologies such as solar power, the group said at its launch in Florence, central Italy. “Traditional knowledge and its innovative use is the basis for sustainable technology, and …