(Topics include but are not limited to)
energy efficiency 
renewable energy
Wind energy
solar energy
Hydrogen energy
geothermal energy
nuclear energy
Tidal energy
New energy vehicles
clean energy
New energy materials and devices
Greenhouse effect and climate change
Pollution control, prevention, and treatment technologies
Environmental Engineering and Sustainable Development
Environmental Mechanics
Environmental pollution and health issues
Microbiology of Environmental Engineering 
Environmental noise control engineering
Comprehensive prevention and control of environmental pollution
Meteorology and Hydrology
Green manufacturing and technology
renewable energy
Soil pollution and control
Air pollution and treatment
Water pollution and its control
Electromagnetic radiation control
Thermal pollution control
Power plant water treatment technology
Monitoring and analysis of pollutants