Politico: Former Vice President Al Gore pushed Congress to find the “moral courage’ to create a cap-and-trade system, endorsing a sweeping climate change proposal as “one of the most important pieces of legislation ever introduced in the Congress.’ “I believe this legislation has the moral significance equivalent to that of the civil rights legislation of the 1960s and the Marshall Plan of the late 1940s,’ he said in testimony delivered to the House Energy and Commerce Committee on Friday …