Table 1.

Distribution of 10 co-operative countries/territories and institutions.

Ranking	Publications	Country/Territory	Publications	Institution
1	1152	USA	72	University of Waterloo
2	464	People’s Republic of China	57	University of Gottingen
3	212	Canada	57	U.S. EPA
4	200	Germany	46	China University of Geosciences
5	115	Italy	40	University of Illinois
6	111	South Korea	40	University of Regina
7	98	Australia	37	University of Arizona
8	94	England	37	Chinese Academy of Sciences
9	83	Taiwan	35	Kultur und Nachhaltige Entwicklung
10	78	India	34	Jilin University