- Earth Sciences, general 12
- Geology 7
- Biogeosciences 5
- Geochemistry 5
- Geotechnical Engineering & Applied Earth Sciences 4
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 4
- Hydrogeology 2
- Environmental Science and Engineering 1
- Fossil Fuels (incl. Carbon Capture) 1
- Geography, general 1
- Hydrology/Water Resources 1
- Mathematical Modeling and Industrial Mathematics 1
- Mineral Resources 1
- Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences 1
- Sustainable Development 1
- Terrestrial Pollution 1