On Monday and Tuesday, NBC weatherman Al Roker reported live from Utqiagvik, Alaska, the northernmost town in the United States, labeling it “ground zero for climate change.” Throughout the segment, Roker implored the nation to “make a commitment” to abandon fossil fuels and assured viewers: “This is not a theory, this is reality here.” “We are back with our special series Al in the Arctic. Al’s there exploring an issue that a lot of folks all over the world are concerned about, and rightfully so, climate change,” co-host Craig Melvin announced during the Today show’s 8:00 a.m. ET hour on...