My best guess is the most vocal greenhouse warming fans and the most vocal debunkers are wrong most of the time. Most of the ice that has melted is floating ice which causes little or no rise in ocean level. Some warming has occured in most locations of Earth, but so far the average Antarctica ice above sea level in this decade is less than 1% different than any decade 50 to 100 years ago. It is possible that the ice is thickening as warmer temperatures typically mean more snow fall, and Antarctica rarely gets warm enough to melt any ice. The evaporation rate of ice = sublinates increases with temperature, but the evaporation of Antarctica ice is much less than the snow fall. The shore line is sinking in some locations, and rising in others. The net rise of ocean level is tiny and possibly none. Neil