This comprehensive guide provides an overview of the current state of climate action in Islamic finance, and a summary of the Islamic basis for action on climate change. It also includes a clear pathway and recommended actions for Islamic banks and regulators in the region to develop an Islamic finance sector that is both resilient and proactive in the face of a changing climate. This knowledge product was developed by UNEP FI together with the Islamic Development Bank (IsDB) and the General Council for Islamic Banks and Financial Institutions (CIBAFI) as part of the SDG-Climate Facility: Climate Action for Human Security project.