How and why should intercultural education address anthropogenic climate change? The paper argues that anthropogenic climate change threatens "biocultural" diversity, leading to linguistic and species extinction and discusses the twofold preservation of cultural and biological diversity. The paper starts with a limited analysis of the research discourse from 2000 to 2019 on the climate crisis contained in the journal Intercultural Education. Looking for eventual missing links in the research discourse, the paper argues for a need to combine more explicitly both diversities and introduces Escobar's call for alternative political ontology (2016, 2018), in order to reflect further on a Western situated posture. As a position paper, the article points to the need for developing a new line of research within the field of intercultural education (IE) based on the two intertwined dimensions of diversity.