Answer: None of the advocates of the theory of anthropogenic global warming claim that CO2 is the only factor controlling temperature in the ocean - atmosphere climate system. (grist.org)
No matter what the reality of an external cooling event, it has no relevance to the reality of anthropogenic global warming. (realclimate.org)
For a variety of reasons I have been limited in blogging, but here is a brief roundup of interesting stories related to the science of anthropogenic global warming. (climate-skeptic.com)