Ridiculous alarmism in the Star Tribune

From this article:

But this much is certain: As the Earth continues to warm, Minnesota will -- for the first time in recorded human history -- become a place significantly different than it is today.
...
Some estimates -- and not extreme ones -- show that by 2080 Wisconsin could enjoy the same climate Arkansas does now.

In that scenario, the mean summer temperature in Madison, Wis. -- now 67 degrees F. -- could rise to 85 degrees F.

Were that to occur, much of what is now commonly referred to as "north woods'' would become oak savannah.

I have no reason to believe that author Dennis Anderson has an "agenda"--I think it's more likely that he simply has no idea what he's talking about...