Associated Press: Taking aim at global warming, President Barack Obama introduced a politically charged plan Monday to order big and lasting cuts in the pollution discharged by America's power plants. But the plan, though ambitious in scope, wouldn't be fully realized until long after Obama's successor took office and would generate only modest progress worldwide. Obama's proposal to force a 30 percent cut in carbon dioxide emissions, by the year 2030 from 2005 levels, drew immediate scorn from Republicans, industry...