Topic
Geography, Planning and Development
8
General Earth and Planetary Sciences
6
Geology
5
Paleontology
4
Aquatic Science
3
Earth and Planetary Sciences (miscellaneous)
3
Earth-Surface Processes
3
Ecology, Evolution, Behavior and Systematics
3
Geophysics
2
Global and Planetary Change
2
Oceanography
2
Plant Science
2
Animal Science and Zoology
1
Computers in Earth Sciences
1
Ecology
1
General Agricultural and Biological Sciences
1
Water Science and Technology
1