This is morbidly fascinating to watch. Deutsche Bank has launched a carbon counter. I'm sure there are others out there, but FWIW, they claim their's is the first scientifically valid one.
Just in the time between when they took the screen shot below to advertise it, the count has gone up over 100,000,000 metric tons. It's like watching a car crash in slow motion, but we're in the car!
They also have a desktop widget so you can watch in dismay all through the day. Hopefully it will kick a few more of us in the pants and spurs us to action.