Stephenson’s thesis is that, despite vast differences between the upper-middle-class college students who make up much of today’s climate movement and southern blacks living under segregation in the 1950s, climate activists think of themselves on the model of the early civil-rights protesters. When climate activists court arrest through civil disobedience, they imagine themselves to be reliving the struggles of persecuted African Americans staging lunch-counter sit-ins at risk of their lives. Today’s climate protesters, Stephenson writes,“feel themselves oppressed by powerful, corrupt forces beyond their control.” And they fight “not only for people in faraway places but, increasingly, for themselves.”

One young activist, a sophomore at Harvard, told Stephenson that she grew up “privileged in a poor rural town.” Inspired by the civil-rights movement, her early climate activism was undertaken “in solidarity” with Third World peoples: “I saw climate change as this huge human rights abuse against people who are already disadvantaged in our global society. . . . I knew theoretically there could be impacts on the U.S. But I thought, I’m from a rich, developed country, my parents are well-off, I know I’m going to college, and it’s not going to make a difference to my life. But especially over this past year, I’ve learned that climate change is a threat to me.” When one of her fellow protesters said: “You know, I think I could die of climate change. That could be the way I go,” the thought stuck with her. “You always learn about marginalized groups in society, and think about how their voices don’t have as much power, and then suddenly you’re like, ‘Wait, that’s exactly what I am, with climate change.’”