Review paper finds the Medieval Warm Period was worldwide and warmer than the present

The Hockey Schtick
"A new review paper from SPPI and CO2 Science concludes "that earth's current level of warmth need not be attributed to the current high level of the air's CO2 content; for the peak warmth of the global Medieval Warm Period was even greater than it has been over the past couple of decades, and at a time when the air's CO2 concentration was approximately 100 ppm less than it is today, which suggests that whatever phenomenon was responsible for the warmth of the Medieval Warm Period could also be responsible for the [current warm period]."