•    Air pollution and treatment
•    Biofuels
•    Desalination
•    Energy Management
•    Environmental Education Programs
•    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
•    Impact of Industrialization on the Environment
•    Nanotechnology Impacts on Environment
•    Oil Spills
•    Pollution and Health Issues
•    Renewable and Non-Renewable Energies
•    Soil Pollution and Treatment
•    Wastewater Management and Treatment
•    Water Pollution and Treatment.