I'm...reasonably confident the IPCC has never said that. They've been pretty consistently up front that predicting ice loss is extremely difficult, so I find it hard to believe they'd put forth a claim like that without heavily qualifying it. Do you have a source?
Also, I think you have the wrong type of "breaking." The ice sheets in Greenland are quite literally "breaking," as in, temperature is rising to the point where they're breaking apart.
The 2018 line of arctic sea ice thicknes, in black, compared to previous years. Actual data collected, not computer model.