- Atmospheric Sciences 15
- Climate Change/Climate Change Impacts 11
- Ecology 3
- Geoecology/Natural Processes 3
- Geography, general 3
- Nature Conservation 3
- Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution 3
- Environment, general 2
- Environmental Management 2
- Agriculture 1
- Climate Change 1
- Environmental Law/Policy/Ecojustice 1
- Food Science 1
- Hydrogeology 1
- Marine & Freshwater Sciences 1
- Plant Sciences 1
- Science, Humanities and Social Sciences, multidisciplinary 1
- Science, multidisciplinary 1
- Social Policy 1
- Social Sciences, general 1