Again, poisoning the well.
There IS NO OTHER SIDE TO THE ARGUMENT SCIENTIFICALLY. Its like saying you want to hear the other side of the argument that water is not a carbon based molecule. Its like saying you want to hear the other side of the argument of plate tectonic theory. Its like saying you want to hear the other side of the argument to DNA being the genetic code of life. The hockey stick (meaning the fact that the earth is warmer than it has been in a thousand years, and that the rise in temperature has been very rapid historically) has been repeatedly shown to be real.
Now for giggles, lets look at the reference you threw out there. It says:
Nonwithstanding this article is TEN YEARS OLD and multiple confirmatory reconstructions with many different temperature proxies (tree rings, coral reefs, ice cores, pollen grains,lake sediments, water isotopic analysis, etc. etc etc) totally confirms and expands upon the data Mann had.
What does that mean? Well, the paper was rejected. But then again, most papers submitted to Nature are. Its pretty much a cutting edge journal that rejects 99% of papers. It can afford to - everyone wants to be in Nature. But what did M and M do? They gave up publishing (there are dozens of lesser journals that may have looked) probably because they knew they'd get ripped in peer review.
By the way, I'll show you a graph from the PAGES 2K reconstruction (referenced earlier it was published in Nature Geoscience (a subjournal of Nature... Nature itself probably wouldnt take it since they showed its foundational work 13 years before))
View attachment 67161415
Green dots show the 30-year average of the new PAGES 2k reconstruction. The red curve shows the global mean temperature, according HadCRUT4 data from 1850 onwards. In blue is the original hockey stick of Mann, Bradley and Hughes (1999 ) with its uncertainty range (light blue). Graph by Klaus Bitterman.
Sorry for having to publicly dismantle you here. But when you make crazy assertions, thats gonna happen.