AMERICANS appear to be undergoing a significant psychological shift in our relation to global warming. I call this shift a climate “swerve,” borrowing the term used recently by the Harvard humanities professor Stephen Greenblatt to describe a major historical change in consciousness that is neither predictable nor orderly.
The first thing to say about this swerve is that we are far from clear about just what it is and how it might work. But we can make some beginning observations which suggest, in Bob Dylan’s words, that “something is happening here, but you don’t know what it is.” Experience, economics and ethics are coalescing in new and important ways. Each can be examined as a continuation of my work comparing nuclear and climate threats.
The experiential part has to do with a drumbeat of climate-related disasters around the world, all actively reported by the news media: hurricanes and tornadoes, droughts and wildfires, extreme heat waves and equally extreme cold, rising sea levels and floods. Even when people have doubts about the causal relationship of global warming to these episodes, they cannot help being psychologically affected. Of great importance is the growing recognition that the danger encompasses the entire earth and its inhabitants. We are all vulnerable.