(Including but not limited to the following topics)
Topic 1: Green Energy
Fuel cells
Renewable and clean energy technologies
Renewable energy and sustainability
Energy system modeling and optimization
Energy and the environment
Environmental-friendly energy technologies
Energy and efficient utilization
Energy conversion and management
Energy transmission and distribution
Alternative energy and hybrid energy systems
Energy storage technology - Solar and photovoltaic systems 
Topic 2: Environmental Science
Related Topics: Climate Change and Atmospheric Science
Hydrology and Water Resources
Soil and Earth Sciences
Biodiversity and Ecosystems
Environmental Pollution Control and Management
Sustainable Energy and the Environment
Environmental Health and Risk Assessment
Resource Recycling and Waste Management
Environmental Law and Policy
Marine Environmental Science
Environmental Psychology and Behavioral Science
Urban Environment and Planning
Industrial Ecology and Green Engineering
Environmental Education and Communication
Agricultural Environmental Science
Natural Resources Management
Environmental Information Technology
Radioactive Substances and the Environment
Natural Disasters and Environmental Impact
Sustainable Development and Environmental Management
Environmental Modeling and Simulation
Environmental Technology and Innovation Research
Energy Systems and Environmental Impact
Polar and Alpine Environments
Ecological and Circular Economy
Renewable Energy Conservation