- Environmental Chemistry 5
- Industrial Chemistry/Chemical Engineering 5
- Catalysis 2
- Climate Change Management and Policy 2
- Energy Policy, Economics and Management 2
- Environmental Policy 2
- Pollution, general 2
- Renewable and Green Energy 2
- Sociology, general 2
- Analytical Chemistry 1
- Biochemistry, general 1
- Climate Change/Climate Change Impacts 1
- Food Science 1
- Organic Chemistry 1
- Waste Management/Waste Technology 1