As the world approaches a tipping point in the climate crisis, the populist radical right is becoming the predominant political opponent of climate science and mitigation policies. The recent electoral gains of populist radical right parties worldwide underscore the urgent need to understand the relationship between their ideology and attitudes towards climate change. This thesis investigates which ideological attitudes – related to the populist radical right – are associated with climate scepticism and opposition to climate policy in the Netherlands. Drawing on survey data from the 2023 Dutch Parliamentary Election Study, five hypotheses are tested through a series of OLS and logistic regression models, focusing on two dependent variables: climate scepticism and policy resistance. The findings suggest that ideological attitudes are more closely associated with opposition to climate policy than with climate scepticism. Nativist and gender traditionalist attitudes are most strongly associated with climate policy opposition, while populist attitudes are more closely associated with scepticism toward climate science. Notably, negative financial expectations are not directly associated with climate scepticism or policy opposition but are indirectly linked through populist and nativist attitudes, lending initial support to an ideological interpretation. Drawing on theories of cultural political economy and political science, this thesis argues that populist radical right’s climate opposition is not merely a response to material grievances, but a broader ideological rejection of liberal cosmopolitanism and societal modernisation, and as a political defence of a declining ‘imperial mode of living’. Climate communication should align with prevalent ideological attitudes by highlighting local, tangible climate impacts that threaten familiar ways of life.