This cluster of papers focuses on the microbial bioremediation of organic pollutants, particularly emphasizing the degradation of polycyclic aromatic hydrocarbons (PAHs) and petroleum hydrocarbons. It covers various aspects such as biosurfactants, genomic analysis of degrading bacteria, anaerobic degradation, and the role of microbial communities in bioremediation processes. Additionally, it explores the potential of phytoremediation and rhizoremediation for environmental cleanup.