The International Monetary Fund's (IMF) Resilience and Sustainability Trust (RST) has been operational for over a year, providing financial support to 17 countries. However, to achieve its objectives, the IMF should take a different approach in applying conditions to the loans. This paper highlights the unique challenges involved in designing best practice conditionality to deal with climate change, which is the focus of the RST so far. The paper suggests three specific changes to address the shortcomings in the emerging conditionality to make the most of the RST's new initiative to help member countries build resilience and sustainability. The IMF has adapted its approach based on initial experience, and a forthcoming Executive Board review will allow for further course correction and greater traction for the RST.