co2 levels up

The growth rate for carbon dioxide, or CO2, emissions has averaged 3.3 percent a year since 2000, compared with 1.1 percent in the 1990s.....The rate rose 35 percent more than economic growth had led scientists to anticipate.

Causes? One is that we are not as efficient at using CO2 as we had anticipated (using more coal for example), and the second cause is that it appears that the CO2 sinks are weakening. The effect of the weakening sinks alone could add 1.5 degrees Celsius (2.7 degrees Fahrenheit) to the global average temperature by 2100. we cannot really pinpoint where the sinks are weakening, except for in the Southern Ocean,''