The climate crisis has begun to disrupt human societies by severely affecting the very foundations of human livelihood and social organisation. Climate impacts are not equally distributed across the world: on average, low- and middle-income countries suffer greater impacts than their richer counterparts. At the same time, the climate crisis is also marked by significant inequalities within countries. Recent research reveals a high concentration of global greenhouse gas emissions among a relatively small fraction of the population, living in emerging and rich countries. In addition, vulnerability to numerous climate impacts is strongly linked to income and wealth, not just between countries but also within them. The aim of this report is twofold. It endeavours first to shed light on these various dimensions of climate inequality in a systematic and detailed analysis, focusing on low- and middle-income countries in particular. It then builds on these insights, together with additional empirical work and interviews with experts, to suggest pathways to development cooperation, and tax and social policies that tackle climate inequalities at their core.