What positive outcome of having children does O'Connell identify in Chapter 8: The Redness of the Map?

O'Connell struggles with the question of whether choosing to be a parent in a world that is likely to have an expiration date hastened by human action is an act of cruelty, irresponsibility, or hope. Toward the end of Chapter 8: The Redness of the Map, O'Connell identifies one change within himself after becoming a parent that he hopes will help humanity survive. He states that since having children, he feels an increased stake in making sure that the earth would not be destroyed anytime soon.