This book features select peer-reviewed proceedings from the 6th International Symposium on Water Pollution and Treatment (ISWPT 2023). It comprises articles written by researchers, practitioners, policymakers and entrepreneurs that examine recent advancements in water pollution and treatment. The book covers a range of topics, including the impact of climate change on water pollution and technologies for reducing greenhouse emissions in water and wastewater treatment. Additionally, it explores water resources planning and management, water quality protection and technologies and processes that control water pollution. This book is useful for beginners, researchers and professionals working in the area of water pollution management, policy and governance.