Agence France-Presse: China reiterated Wednesday its long-term dependence on coal for energy, but pledged to step up efforts to burn the fuel more cleanly to reduce its impact on global warming. In its first white paper on energy, the Chinese government also vowed to develop sustainable energy industries, and said its booming demand for fuel would not pose a threat to world energy security. “China did not, does not and will not pose any threat to the world’s energy security,” said the …