This study provides a systematic and interdisciplinary assessment of metrics for energy, climate, and environmental justice. It enriches existing literature by advancing a comprehensive approach that accounts for measures and metrics beyond the easily quantifiable, distributive justice factors used in much of the literature. Based on a systematic and critical umbrella review of published research over 25 years (from 2000 to 2024), we showcase a synthetic inventory of 2162 metrics compiled from >500 studies. We analyze them by their type, composition, dimensions, impact focus, and spatial scale. We find that existing metrics cut across qualitative, quantitative, and hybrid types, as well as simple versus complex composition. They also differ in their treatment of tenets of equity and justice, impacts on people, technology, the economy and the environment, and spatial scale of global, national, community, and household. As a final step, we evaluate 10 prominently recurring indicators of energy justice identified through a comprehensive literature review using the Analytical Hierarchy Process, a structured decision-making framework. The findings reveal a predominant focus on procedural metrics, with substantial concentrations on economic impacts. Our results identify emerging areas that remain underexplored, including political, health, and demographic impacts or toolkits on the household scale. We assert that the smaller proportion of complex indicators revealed in the analysis underscores the need for more sophisticated tools that integrate diverse dimensions or impacts of justice.
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