St. Lucia has been a leader among vulnerable Caribbean states in prioritizing a response to climate change, both nationally and in international fora. Its Nationally Determined Contribution (NDC) submission to the Paris Agreement outlines a balanced mitigation strategy backed by costed investment plans, and a qualitative adaptation strategy with identified priority sectors. A National Adaptation Plan (NAP) process was launched in April 2018. This IMF country paper takes stock of St. Lucia’s plans to manage climate change, from the perspective of their macroeconomic implications. It suggests macro-relevant reforms that could strengthen the likelihood of success of the national strategy and identifies policy gaps and resource needs. The paper is available to download on the IMF website.