I recently saw a study done in relation to a warm Ocean current that had shifted south along the Antarctic coast. There are as many theories about this as there are misguided explanations.
The only explanation for warmer Ocean currents would be Solar radiation increasing the Earth’s water temps. There is also one theory out there that claims Sub sea Volcanism is partly to blame for the warmer water.
Not one drop of submerged ice can melt until the surrounding ocean temperature rises above 32 degrees, which is freshwater ice’s tipping point. It takes a tremendous amount of energy to heat this much water to 32 degrees. I bet the ocean water isn’t above 32 degrees and therefore this isn’t a global warming melting mechanism but something entirely different.