When all of the tree ring data from Yamal is plotted, the famous hockey stick disappears. Not only does it disappear, but goes negative. The conclusion is inescapable. The tree ring data was hand-picked to get the desired result.
It's almost as if the whole racket is based on fraud.
But even as global temperatures have flat-lined for the last decade, global warmers continue to claim we are experiencing warming. So losing data that might be useful to check past research and finding data is corrupted won't affect the global warming high priests and their devoted acolytes.