Agence France-Presse: China, which is facing serious environmental problems due to its booming economic growth, will next month launch its first nationwide survey to identify pollution sources, state media said Saturday. The survey, to be completed in the first half of 2008, will assess the sources of industrial, agricultural and residential pollution, said Zhou Shengxian, director of the State Environmental Protection Administration. The results will be revealed in the first half of 2009, Zhou told …