When the ice shelves in Greenland (40 foot sea level rise) and Antarctica (200 foot seas level rise) occur then I reckon it'll not be gradual but will be a sudden collapse. All within a very short space of months.
The real issue is that nobody has proven this wasn't going to occur anyway. This is always the downfall with climate science in that there is no explicit proof that anything man does to the planet would alter what was going to occur anyway.
Climate scientists also have an agenda to keep their funding so will never say "there is no issue" but will always point to the inevitable as it matches what they want for a conclusion.
The real issue is that nobody has proven this wasn't going to occur anyway. This is always the downfall with climate science in that there is no explicit proof that anything man does to the planet would alter what was going to occur anyway.
Climate scientists also have an agenda to keep their funding so will never say "there is no issue" but will always point to the inevitable as it matches what they want for a conclusion.
Follow the money, as they say.