The cognitive bias behind bad climate math

Anthropocene Magazine reports on research that reveals why people struggle to identify which climate actions actually cut emissions most effectively. A new study of over five hundred North Americans found that individuals tend to overestimate familiar actions like recycling while underestimating higher-impact changes such as flying less and eating less red meat. Psychologist Claudia Schneider and her team identified two cognitive biases as culprits: the availability heuristic—favoring actions that come to mind easily—and motivated reasoning, which leads people to rate actions they themselves do more favorably. The researchers tested three strategies to improve carbon competence, from offering better rules of thumb to directly naming the most effective actions. But the interventions didn't reliably work across the board; their impact varied widely from person to person. The takeaway, per Schneider, is that simply telling people which climate actions matter most won't move the needle for everyone. The search continues for approaches tailored to different audiences.

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