- Climatology 5
- Geophysics/Geodesy 4
- Oceanography 4
- Climate, general 3
- Energy Policy, Economics and Management 2
- Environmental Economics 2
- Environmental Policy 2
- Natural Resource and Energy Economics 2
- Public Policy 2
- Sociology, general 2
- Sustainable Development 2
- Climate Change 1
- Climate Change Management and Policy 1
- Earth System Sciences 1
- Ecology 1
- Environmental Management 1
- Environmental Sociology 1
- Hydrogeology 1
- International Environmental Law 1
- Landscape Ecology 1