This chapter provides an overview of Ireland’s policy response to climate change. It traces the evolution of climate policy during four distinct historical phases. The first of these was the era of the so-called Celtic Tiger, which saw a rapid rise in emissions. The second was characterised by profound crisis of economy and polity, during which attention was diverted from climate policy but with a significant fall in greenhouse gas (GHG) emissions. The third phase was the economic recovery, which in many ways was as unexpected in its speed and extent as the crash. During this period, Ireland’s emissions rebounded strongly, illustrating that Ireland’s emissions remain stubbornly coupled to economic growth. Fourth and finally, the chapter examines Irish climate policy since 2017, asking whether Ireland has left its laggard status behind. The chapter concludes with a reflection on the broader context that has shaped Ireland’s policy response to climate change.