Greenhouse gas levels rising faster than predicted

This from the WBCSD reports that "Greenhouse emissions are rising faster than the worst-case IPCC scenarios".

"This paper suggests that there exists evidence that the IPCC process may have led to an underestimation of the risk of greater warming and that the impacts of climate change are occurring more rapidly than previously projected"

The report is from an independent Australian research group, who I've not come across before, but it's made me quite depressed.

Addendum:
A slightly more comprehensive report from News.com.au.