Climate change policy is a contested field, with rival perspectives underpinning radically different policy propositions: from encouraging the market to innovate technical solutions to climate change through to the replacement of a market economy with an eco-socialist model. These differing policy options draw upon a variety of economic concepts and approaches, with significant consequent divergences in their policy recommendations. In this paper, we consider policy as assembled from a wide range of sociomaterial components–some human, others non-human. Using a ‘new materialist’ toolkit, we explore four contemporary climate change policies to unpack these policy-assemblages, and assess the different uses made of economics in each assemblage. We conclude that none of these contemporary policies is adequate to address climate change. Yet despite the incommensurability between how these disparate policies use economic concepts and theories, we suggest a materialist synthesis based on a comprehensive climate change policy-assemblage.