Abstract
This article explores emission units as a linkage in climate clubs in the hope of making a remarkable difference in climate change mitigation. It analyzes emission units trading in the context of regional trade agreements as a novel, promising, and effective way to mitigate climate change. It then examines Article XX of the General Agreement on Tariffs and Trade (GATT) as a potential and encouraging remedy for the development of climate clubs. Specifically, it explores the scope of application of Article XX and investigates to what extent it can be applied to climate concerns. It then provides an analysis of climate-club measures according to the jurisprudence of the World Trade Organization on GATT Article XX