Associated Press: President Barack Obama declared the debate over climate change and its causes obsolete Tuesday as he announced a wide-ranging plan to tackle pollution and prepare communities for global warming. In a major speech at Georgetown University, Obama warned Americans of the deep and disastrous effects of climate change, urging them to take action before it's too late. "As a president, as a father and as an American, I'm here to say we need to act," Obama said. Obama announced he was directing his administration...