Okay, I think I get this "alternative facts" business:
Panels (A) and (B) show what it looks like when culturally diverse citizens use their knowledge of facts to do the best they can on a test of their “climate science literacy.”
In contrast, panels (C) and (D) show what it looks like when diverse citizens use their knowledge of fact to be a competent member of a cultural tribe.
Sadly, politics puts the question—who are you, whose side are you on—posed by (C) and (D).
Fixing that is the greatest challenge that confronts the Liberal Republic of Science.