The narrator’s newfound resolve to take care of Dad mirrors his declaration, in the first chapter, that he would take care of his parents no matter what crises the future had in store. Ironically, though, it is Dad who is taking care of the narrator—perhaps a suggestion that, having destroyed the planet in so many ways, Dad’s generation will never see their children become full, caretaking adults. Dad’s closing of the narrator’s green eyes, the very eyes that symbolize life, suggests that the narrator is dying. And in a story about survival, it is only fitting that the protagonist’s death spells the end of the book.