Keeping our climate from increasing no more than 2 degrees celcius this century is looking increasingly unlikely. The rate of action is just not quick enough. Scientist are now talking about a possible 4 degrees rise by the end of this century.
4 degrees may not sound much but it is a drastic change.
Here are some articles about it
The ABC: Life at 4 degrees
"Turn Down the Heat" Why a 4 degrees Warmer World must be avoided" A World Bank publication by the Potsdam Institute on the effects of such a change.
397.64 CO2 ppm