Antarctica's Underwater Ice Is Retreating 5 Times Faster Than It Should Be...
[livescience.com]
This is an aspect of global warming that rarely gets mentioned, in many ways it is happening faster than models predict. And there's no reason to believe it couldn't suddenly accelerate, nature tends to sudden rates of change when things destabilize.
We may have already hit the "tipping point", & just aren't aware enough to know it!