Agence France-Presse: Democrats in the US House of Representatives on Friday formally unveiled sweeping legislation to fight climate change and said the 932-page bill enjoyed broad national support. The House Energy and Commerce Committee will take up the measure on Monday and have legislation ready for a full House vote by the end of next week, the panel’s chairman, Democratic Representative Henry Waxman, said in a statement. “The American Clean Energy and Security Act” is expected to run headlong …