Campaigns and prognosticators alike should expect a curveball from Mother Nature ahead of Monday’s Iowa caucus. According to CNN, “dangerously frigid weather” from an Arctic blast will give Iowans “their coldest caucuses ever.” With this in mind, Republican candidates and their staffers must adjust on the fly as they fret over turnout. In an age of climate-change alarmism, we hear more about the dangers of rising temperatures than falling ones. Suffice it to say, however, that temperatures on Monday will lend no support to the global-warming narrative/hoax. For instance, nearly all of Iowa wil…