but with protecting humanity and avoiding death and suffering for a few billion who are in harm's way and don't have the resources to get out of it.

Are there scientific reports that predict death and suffering for a few billion due to ice melts? I thought that the IPCC currently predicts the sea level rise to be about a half a foot to two feet over the next century. A foot per century is not too much different than what the sea level rise has been since the 1800s at least. From the predicitions it sounds like dealing with this rise is well within our capability while we wean ourselves from fossil fuels.