The 6th International Conference of Recent Trends in Environmental Science and Engineering (RTESE'22) aims to become the leading annual conference in fields related to environmental science and engineering. The goal of RTESE'22 is to gather scholars from all over the world to present advances in the relevant fields and to foster an environment conducive to exchanging ideas and information. This conference will also provide an ideal environment to develop new collaborations and meet experts on the fundamentals, applications, and products of the mentioned fields. Topics for RTESE’22 include, but are not limited, to the following: Air pollution and treatment Biofuels Desalination Environmental Protection Environmental Risk Assessments Environmental Safety Regulations Environmental Sustainability and Development Green Manufacturing and Technologies, Pollution Prevention Greenhouse Effect, Global Warming, and Climate Change Groundwater Issues Oil Spills Pollution and Health Issues Renewable and Non-Renewable Energies Soil Pollution and Treatment Wastewater Management and Treatment Water Pollution and Treatment