A new word, “polycrisis”, has entered the vocabulary of ecologists, particularly those scientists who are monitoring the health of the entire planet. Some of these scientists are uncomfortable with the word, arguing that it is an alarmist term. They believe that we have various crises, in the plural, but they are not indicative of the widespread description that is implicit in such a cataclysmic term as polycrisis. Some historians say that what we are experiencing “is just history happening.”

Thomas Homer-Dixon, one of the world’s foremost authorities on the relationship between ecology and human behaviour, argues that such a term as polycrisis is an apt description of what is actually happening on our planet, and it is the result of multiple factors. The word, he says, was first coined in the 1990s at the World Economic Forum to describe the “tangled mess of problems” that seemed to be occurring—“pandemic, war, climate extremes, energy shortages, inflation, rising authoritarianism, and the like.” The term, however, proved useful.