The European Union’s roles in global atmospheric governance: evolving towards a ‘spacifier’?

ABSTRACT This contribution examines how the roles of the European Union (EU) in the governance of the atmosphere – the global ozone and climate regimes – as a contested Global Space have evolved over time. To do so, it first combines theoretical considerations regarding foreign policy roles and global justice. It then traces EU role conceptions and role performance in these regimes from their inception until today. The article argues that, as the two regimes have matured, the EU has increasingly been adopting the role of a ‘spacifier’, pursuing a substantive justice position dedicated to fully protecting the atmosphere (‘leaving the space in peace’) while actively striving to reconcile other actors’ positions. This role embodies the EU’s simultaneous quest for embracing the European Green Deal’s socio-ecological transformation agenda while becoming a geopolitical actor. It can be interpreted as an expression of ‘principled pragmatism’ under the conditions of the Anthropocene.