- Environment, general 4
- Science, Humanities and Social Sciences, multidisciplinary 4
- Science, multidisciplinary 4
- Climate Change/Climate Change Impacts 3
- Animal Physiology 2
- Atmospheric Protection/Air Quality Control/Air Pollution 2
- Atmospheric Sciences 2
- Biological and Medical Physics, Biophysics 2
- Climate Change 2
- Climatology 2
- Earth Sciences, general 2
- Environmental Health 2
- Environmental Law/Policy/Ecojustice 2
- Life Sciences, general 2
- Meteorology 2
- Plant Physiology 2
- Biological and Physical Anthropology 1
- Ecology 1
- Evolutionary Biology 1
- Paleontology 1