Every once in awhile, I’m struck by something that makes me realize how the ancient storytellers were terrifically acute observers of the human condition, and used metaphor brilliantly to convey their observations.

Perhaps the most salient example these days is the song of the sirens, the beauties whose songs would lure sailors toward them until they grounded their ships on the rocks and drowned. The modern-day sirens, Avery and Singer, are taking up the cause by trying to lure the world away from any action to reduce greenhouse-gas emissions. Their song is that this is all just a natural cycle, and the skyrocketing CO2 concentrations can just be ignored.