Biodiversity Framing Reduces Polarisation in Climate Policy Support Across Cultural Worldviews

Social polarisation poses a major challenge to collective climate action. In this context, biodiversity conservation, when aligned with climate objectives, may receive broader public support than direct climate policies. However, the links between biodiversity values and wider cultural worldviews remain poorly understood. We investigated this relationship using a nationwide survey (N = 1,133) in Japan. Individuals with hierarchical worldviews perceived climate change risks as lower and tended to be less supportive of climate policies. The negative association between hierarchical worldviews and perceived biodiversity risks or support for biodiversity policies was weaker, and no direct association was found for biodiversity conservation measures unrelated to climate. Higher general scientific knowledge was associated with greater support for biodiversity policies linked to climate policy. Framing climate initiatives via biodiversity conservation may reduce culturally driven resistance. Enhancing scientific literacy could promote societal support for integrated climate–biodiversity policy measures.