The climate swerve is mostly a matter of deepening awareness. When exploring the nuclear threat I distinguished between fragmentary awareness, consisting of images that come and go but remain tangential, and formed awareness, which is more structured, part of a narrative that can be the basis for individual and collective action.

In the 1980s there was a profound worldwide shift from fragmentary awareness to formed awareness in response to the potential for a nuclear holocaust. Millions of people were affected by that “nuclear swerve.” And even if it is diminished today, the nuclear swerve could well have helped prevent the use of nuclear weapons.

With both the nuclear and climate threats, the swerve in awareness has had a crucial ethical component. People came to feel that it was deeply wrong, perhaps evil, to engage in nuclear war, and are coming to an awareness that it is deeply wrong, perhaps evil, to destroy our habitat and create a legacy of suffering for our children and grandchildren.

Social movements in general are energized by this kind of ethical passion, which enables people to experience the more active knowledge associated with formed awareness. That was the case in the movement against nuclear weapons. Emotions related to individual conscience were pooled into a shared narrative by enormous numbers of people.