The environmental justice (EJ) movement has evolved over five decades, encapsulating diverse theories, principles, frameworks, and practices. Despite considerable advancements in this field, the nuances of EJ in the Anthropocene era, along with its monitoring and evaluation, remain ambiguous. This paper endeavors to bridge this gap by amalgamating more than 200 review and empirical articles and theoretical literature to delve into a comprehensive exploration of the EJ discourse to date, utilizing the Planetary Justice Research Framework (PJRF). First, we build on the existing knowledge by using three dimensions of EJ from the PJRF, acknowledging historical legacies, and explaining them with practical examples. Second, we create a comprehensive framework to evaluate (in)justice in real-world applications, highlighting the contextual relationships (intra-, inter-, and transdisciplinary) and the role of spatial, temporal, and contextual factors. Finally, we explore the complex connections between living beings and non-living components, showing how (un)just actions impact the balance within and between planetary systems. Consequently, the newly devised monitoring framework highlights potential instances where questions of (in)justice may arise in practical settings, thereby guiding the formulation of measuring indicators and procedural methodologies.