Beyond “Crisis” and “Change”: Why Climate Needs Stages, Not Adjectives

Abstract

Climate science has long struggled to communicate urgency proportionate to the severity of the crisis it describes. Terms such as ‘climate change’ carry neutral or even positive connotations, while ‘climate crisis’ and ‘climate catastrophe,’ though more accurate, lack specificity needed to guide an appropriate response. We propose that climate communication could benefit from adopting a staging framework analogous to the TNM cancer staging system: a model that conveys not only severity but progression and the rationale for proportionate intervention. Drawing on the cognitive science of metaphor, we show that framing shapes perception and decision-making unconsciously. A climate staging system would be low-cost to adopt, faces no obvious organized political opposition, and could align public perception with what is an advancing, potentially irreversible, planetary disease. Based on current planetary boundary data, we suggest the planet may already be at the equivalent of Stage III.