Understanding and evaluating sea ice feedbacks is complicated by the strong coupling to polar cloud processes and ocean heat and freshwater transport. (ipcc.ch)
Several ocean - air - sea ice feedback processes may be operating (Meredith and King 2005; Hanna 1996), though it has been difficult to pin down their relative roles in the observational studies (King 1994; Jacobs and Comiso 1997). (link.springer.com)
This sea ice feedback at 18K is consistent with the smaller fsnow / ice ∼ 1.1 in the So and CO2 experiments, which applied to a warmer earth with less sea ice. (pubs.giss.nasa.gov)