Understanding the climate-conflict nexus from a humanitarian perspective aims to improve the humanitarian sector’s understanding of the nexus between climate change and violent conflict. This paper suggests a series of indicators and new metrics for assessing the risk of climate change-induced conflict for 157 countries. This paper identifies 20 countries in the climate-conflict nexus i.e. the intersection between weak institutions and social fragility, as well as climate change vulnerability. Together, these countries encompass some 780 million people living mostly in South Asia, South-East Asia and sub-Saharan Africa where the international humanitarian system is already actively providing life-saving assistance.