Table 5. Overlap of disciplines in global environmental change research.

	Phys	Chem	Earth	Bio	Agric.	Social	Comp	Clim	Health	Engin	Econ
Physic. sc.	162	23	115	17	6	6	17	86	4	22	3
percentage	100.0	14.2	71.0	10.5	3.7	3.7	10.5	53.1	2.5	13.6	1.9
Chem. sc.	23	50	40	11	4	4	8	22	1	3	4
percentage	46.0	100.0	80.0	22.0	8.0	8.0	16.0	44.0	2.0	6.0	8.0
Earth sc.	115	40	846	114	32	36	53	249	11	64	14
percentage	13.6	4.7	100.0	13.5	3.8	4.3	6.3	29.4	1.3	7.6	1.7
Biol. sc.	17	11	114	258	20	12	25	29	9	9	5
percentage	6.6	4.3	44.2	100.0	7.8	4.7	9.7	11.2	3.5	3.5	1.9
Agric. sc.	6	4	32	20	53	6	3	14	2	5	6
percentage	11.3	7.5	60.4	37.7	100.0	11.3	5.7	26.4	3.8	9.4	11.3
Social sc.	6	4	36	12	6	66	12	21	7	7	10
percentage	9.1	6.1	54.5	18.2	9.1	100.0	18.2	31.8	10.6	10.6	15.2
Comp. sc.	17	8	53	25	3	12	85	23	5	15	5
percentage	20.0	9.4	62.4	29.4	3.5	14.1	100.0	27.1	5.9	17.6	5.9
Climate sc.	86	22	249	29	14	21	23	386	9	26	11
percentage	22.3	5.7	64.5	7.5	3.6	5.4	6.0	100.0	2.3	6.7	2.8
Health	4	1	11	9	2	7	5	9	22	5	3
percentage	18.2	4.5	50.0	40.9	9.1	31.8	22.7	40.9	100.0	22.7	13.6
Engin.	22	3	64	9	5	7	15	26	5	88	5
percentage	25.0	3.4	72.7	10.2	5.7	8.0	17.0	29.5	5.7	100.0	5.7
Econ. sc.	3	4	14	5	6	10	5	11	3	5	21
percentage	14.3	19.0	66.7	23.8	28.6	47.6	23.8	52.4	14.3	23.8	100.0

Table shows frequencies and percentages for overlaps of disciplines, multiple answers were allowed (n = 1232).