Topic
Ecology, Evolution, Behavior and Systematics
18
Earth-Surface Processes
15
Global and Planetary Change
14
Geography, Planning and Development
12
General Earth and Planetary Sciences
10
Geology
7
Political Science and International Relations
3
General Agricultural and Biological Sciences
2
Plant Science
2
Sociology and Political Science
2
Anthropology
1
Aquatic Science
1
Cell Biology
1
Cultural Studies
1
Development
1
Earth and Planetary Sciences (miscellaneous)
1
General Environmental Science
1
General Medicine
1
Genetics
1
History
1
Insect Science
1
Law
1
Management, Monitoring, Policy and Law
1
Molecular Biology
1
Paleontology
1
Physiology
1