Don't try and hide behind climatology double-speak waffle.
The IPCC forecast stated, (and you agreed with it,) that they thought global temperature would add 2 C by 2050. Of course that might be wrong, but that is what they think…"
"Parallel, you are either very ignorant of the IPCC review, or very confused.
The IPCC review spends a long time quantifying the uncertainty and the summary paragraph you quote uses "likely" in the commonly used sense of…"