ah, OMG. ICE.
Well, every profession has different uses of acronyms, LOL.
I'm not an engineer. Still, I understand and concur.
Windpower for big ships is also a (niche) solution.
How much: every 10th of a degree counts IMO.
To be sure:
I believe even the rate of the change ist presently still accelerating.
We need an emergency break.