CBS: A workhorse Delta 2 rocket roared to life and climbed away from California coast early Wednesday, boosting an environmental research satellite into orbit on a $468 million mission to precisely measure global carbon dioxide levels, a key factor in climate change. The Orbiting Carbon Observatory 2 satellite was built to replace a virtually identical spacecraft that was destroyed in a 2009 launch failure aboard a different rocket. The delay and switch to the Delta 2 drove the cost up by nearly $200...