[Essay Topic]
(The following topics include but are not limited to)
Topic 1: Environmental Engineering
environmental hydraulics
sustainable development
Remote Sensing and Environment
environmental efficiency 
Noise and Acoustics
Environmental remediation project
Pollution control engineering
Electromagnetic Waves and Telecommunications
Water pollution and treatment
environmental management system
control of industrial pollution
Environmental safety and health
Environmental Planning and Assessment
Environmental analysis and monitoring
Topic 2: Energy Science
Controllable nuclear fusion
High proportion of renewable energy connected to the grid
New energy storage materials
Hydrogen energy preparation and storage and transportation
Carbon capture and storage technology
Smart Energy System
Energy Internet architecture
Superconducting power transmission
Biomass energy conversion
Geothermal development technology
Ocean energy utilization
Energy big data analysis
Distributed microgrid
Safe utilization of nuclear energy
Energy Policy Modeling
Extreme Climate Resilience Design
Energy blockchain
Global Energy Governance
Theme 3: Ecological Restoration
Soil Protection and Restoration
Marine Environmental Protection and Restoration
Ecological plunder and ecological restoration
Sustainable Development and Environmental Remediation
Application of New Materials in Environmental Remediation
The Application of Microorganisms in Environmental Remediation
Post disaster ecological restoration
ecological engineering
biodiversity conservation
Ecosystem services
Ecological monitoring and assessment
Ecological monitoring technology
Research and application of new tunnel excavation equipment
Ecological Restoration and Climate Change