The average temperature in Antarctica is around -30 degrees Fahrenheit, what kind of ice is it that melts at 60 degrees BELOW freezing?
It said the water in the melting trench / tunnel is 1.5 degrees warmer than other water, so it is actually minus 58.5 degrees, not minus 60.
I’m still pretty convinced that that shouldn’t do much melting, but who am I to know such stuff.