The IPCC reports were likely wrong and biased.

Unfortunately for all of us, they were likely wrong because they understated effects out of fear of being called alarmists and because uncertainty swings both ways, and it seems that in the real world effects are far worse than expected (largely because unmodeled impacts of global warming are accelerating warming rather than either reducing or even balancing it out).

the rate of change is litteraly off the charts, and plausible real world effects are as well.

https://nsidc.org/sea-ice-today

https://www.ospo.noaa.gov/products/ocean/sst/contour/