Times-Picayune: A new federal report says that 2012 was one of the 10 warmest on record and, along with rising sea levels and arctic ice melting, are clear signs the worldwide climate is changing. The report said that four major independent datasets ranked 2012 the 8th or 9th warmest on record. It said the United States and Argentina had their warmest year on record. The 260-page peer reviewed report by the National Oceanic and Atmospheric Administration is likely to be cited often by President Barack Obama and...