All of these studies, as well as our more recent ones, include the moderating effect of atmospheric stabilization aloft under high CO2 conditions, rather than simply increasing the sea surface temperature alone. (gfdl.noaa.gov)
Edenhofer, O., K. Lessmann, C. Kemfert, M. Grubb, and J. Köhler, 2006: Induced technological change: Exploring its implication for the ecnomics of atmospheric stabilization. (ipcc.ch)
Along this line there are several issues in particular about which greater awareness is needed including greater public understanding of the ethical implications of any nation's ghg emissions reduction commitment in regard to an atmospheric stabilization goal the commitment is seeking to achieve and the coherence or lack there of the national commitment to an acceptable equity framework. (ethicsandclimate.org)