This empty criticism is extremely old and tired by now. Maybe you could inform yourself a little better. There are various public sources of serious prediction

This empty criticism is extremely old and tired by now. Maybe you could inform yourself a little better. There are various public sources of serious predictions (usually done with supercomputers) made more than a decade ago, some of which you can find in the IPCC report. You can compare that to the actual outcome and see if it falls within the set bounds of uncertainty. I bet pretty much every professional climate scientist has run this kind of analysis once.