So when do we get to the Modern Optimal?

Everyone's heard of the Medieval Warm Period (maybe all the more since we weren't supposed to believe in it -- that worked for the Tooth Fairy, too), but I didn't know that it "used to be known as the Medieval Optimal before it became politically incorrect to think of a warm climate as desirable".

More from Lorne Gunter on unaccustomed warmth:

Grapes grew in southern England. Norse settlers established farms in Greenland. And the plagues and territorial wars driven by scarcity that marked the Late Middle Ages were centuries in the future -centuries notable for their coldness during the Little Ice Age (1300 to 1850).

Peace and plenty. Why try to hold back a tide like that?