(The following topics include but are not limited to)
Topic 1: Energy Technology
Renewable energy generation
Energy storage technology and systems
Hydrogen and Fuel Cell 
Smart grid and microgrid
Energy Conversion and Efficiency Enhancement
Clean coal and carbon capture
Nuclear Energy Technology and Safety
Energy Policy and Economic Analysis
Topic 2: Environmental Science and Engineering
Environmental Pollution and Control
Water treatment and resource recycling
Atmospheric monitoring and governance
Solid waste treatment and utilization
Ecological Restoration and Protection
Environmental Health and Risk Assessment
Environmental Monitoring and Information System
Climate Change and Adaptation
Topic 3: Advanced Materials
Energy Materials and Devices
Environmental functional materials
High performance structural materials
Intelligent and responsive materials
Biomedical materials
Nanomaterials and Low Dimensional Materials
Material Calculation and Design
Material Processing and Manufacturing