Top countries for Environmental Sciences

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Which countries have the most top-cited scientists in Environmental Sciences?

2,941 researchers whose main subfield is Environmental Sciences are in the 2026 list of top-cited scientists, the annual ranking often called the Stanford–Elsevier top 2% scientists list. China has the most (1,048, 35.6%), followed by the United States (281) and India (168). A country with 100 or more opens its institutions in the subfield; the others open their scientists in the table of all authors.

#	Country	Listed authors	Top 100k	Share of subfield	Highest-ranked author	Top institution
1	China	1,048	785	35.6%	Wang, Jianlong #185	Tsinghua University
2	United States	281	230	9.6%	Elimelech, Menachem #316	College of Engineering
3	India	168	131	5.7%	Varjani, Sunita J. #665	Saveetha School of Engineering
4	United Kingdom	137	116	4.7%	Adger, W. Neil #378	Imperial College London
5	Australia	97	84	3.3%	Bolan, Nanthi Sirangie #643	The University of Queensland
6	Germany	73	54	2.5%	Filho, Walter Leal #344	Helmholtz Zentrum für Umweltforschung
7	Netherlands	71	63	2.4%	Bocken, Nancy M.P. #683	Wageningen University & Research
8	Canada	70	59	2.4%	Rochman, Chelsea M. #490	University of Toronto
9	Italy	60	47	2.0%	Magazzino, Cosimo #2,180	Università degli Studi di Siena
10	Spain	52	37	1.8%	Lozano, Rodrigo #1,327	CSIC - Instituto de Diagnostico Ambiental y Estudios del Agua (IDAEA)
11	Türkiye	48	38	1.6%	Pata, Ugur Korkut #273	Mustafa Kemal Üniversitesi
12	Switzerland	47	37	1.6%	Nowack, Bernd #3,240	ETH Zürich
13	South Korea	40	35	1.4%	Kim, Ki Hyun #561	Korea University
14	Saudi Arabia	39	35	1.3%	Raihan, Asif #1,652	King Fahd University of Petroleum and Minerals
15	Iran	39	30	1.3%	Pourghasemi, Hamid Reza #3,098	Shiraz University
16	Pakistan	37	34	1.3%	Abbas, Jawad #2,851	Government College University Faisalabad
17	Sweden	37	30	1.3%	Ahrens, Lutz #2,872	Sveriges lantbruksuniversitet
18	Hong Kong	36	29	1.2%	Wong, Ming Hung #3,500	The University of Hong Kong
19	Denmark	35	27	1.2%	Kirchherr, Julian #1,842	Technical University of Denmark
20	Poland	32	24	1.1%	Adebayo, Tomiwa Sunday #453	Uniwersytet Warminsko-Mazurski w Olsztynie
21	Malaysia	32	24	1.1%	Danish, Danish #2,844	Universiti Kebangsaan Malaysia
22	Nigeria	32	21	1.1%	Egbueri, Johnbosco C. #3,054	Ladoke Akintola University of Technology
23	Portugal	24	17	0.8%	Prata, Joana Correia #1,072	Universidade de Aveiro
24	Norway	24	24	0.8%	Sarkodie, Samuel Asumadu #1,147	Norges Teknisk-Naturvitenskapelige Universitet
25	Egypt	23	16	0.8%	Shaheen, Sabry Mohamed #8,860	Assiut University
26	France	22	18	0.7%	Oturan, Mehmet Ali #7,356	Laboratoire Géomatériaux et Environnement (LGE)
27	South Africa	21	15	0.7%	Sillanpää, Mika E.T. #664	University of South Africa
28	Bangladesh	21	14	0.7%	Murshed, Muntasir #957	Noakhali Science and Technology University
29	Taiwan	21	19	0.7%	Tseng, Ming Lang #1,042	National Kaohsiung University of Science and Technology
30	Greece	21	16	0.7%	Dionysiou, Dionysios Demetriou #5,527	Aristotle University of Thessaloniki
31	Belgium	20	15	0.7%	Sala, Serenella #6,447	Universiteit Gent
32	Austria	16	13	0.5%	Baumgartner, Rupert J. #4,755	BOKU University
33	Japan	14	9	0.5%	Rahut, Dil Bahadur #25,562	Tohoku University
34	United Arab Emirates	13	11	0.4%	Alam, Edris #29,132	Khalifa University
35	Vietnam	10	7	0.3%	Tran, Hai Nguyen #2,629	Duy Tan University
36	Singapore	10	10	0.3%	Sharma, Pooja #6,931	National University of Singapore
37	Brazil	10	7	0.3%	Malafaia, Guilherme #23,648	Universidade Estadual Paulista Júlio de Mesquita Filho
38	Mexico	9	7	0.3%	Iqbal, Hafiz M.N. #7,075	Instituto Politécnico Nacional
39	Thailand	9	7	0.3%	Gheewala, Shabbir Hussaini #14,656	Mahidol University
40	Indonesia	9	4	0.3%	Latan, Hengky #16,852	Badan Riset dan Inovasi Nasional
41	Czechia	8	6	0.3%	Maroušek, Josef #7,028	Czech University of Life Sciences Prague
42	Russia	7	6	0.2%	Wang, Qiang #493	Southern Federal University
43	Cyprus	7	5	0.2%	Zorpas, Antonis A. #5,709	Near East University
44	Ireland	7	4	0.2%	Rowan, Neil J. #11,639	University of Galway
45	Finland	7	7	0.2%	Niinimäki, Kirsi #17,317	Helsingin Yliopisto
46	Qatar	6	6	0.2%	Al-Ghouti, Mohammad Ahamd #9,751	Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University
47	Morocco	6	5	0.2%	Ikram, Muhammad #18,122	Mohammed VI Polytechnic University
48	New Zealand	5	4	0.2%	Kah, Melanie #8,925	University of Auckland
49	Oman	5	4	0.2%	Eltaweil, Abdelazeem Saad #18,681	A’Sharqiyah University
50	Sri Lanka	4	3	0.1%	Vithanage, Meththika Suharshini #6,762	University of Sri Jayewardenepura
51	Ethiopia	4	2	0.1%	Aragaw, Tadele Assefa #7,220	Bahir Dar University
52	Ghana	4	4	0.1%	Kwakwa, Paul Adjei #30,514	Kwame Nkrumah University of Science & Technology
53	Iraq	4	2	0.1%	Al‏-‏Musawi, Tariq J‏ #49,439	Al-Mustaqbal University
54	Colombia	4	3	0.1%	Georgin, Jordana #64,530	Universidad de la Costa
55	Brunei	3	3	0.1%	Karri, Rama Rao #24,030	Universiti Teknologi Brunei
56	Ecuador	3	3	0.1%	Alvarado, Rafael #24,441	Universidad Nacional de Loja
57	Tunisia	3	2	0.1%	Jebli, Mehdi Ben #38,274	Faculté des Sciences Juridiques, Economiques et de Gestion de Jendouba
58	Israel	3	2	0.1%	Chefetz, Benny #85,993	Hebrew University of Jerusalem
59	Lebanon	2	2	0.1%	Kirikkaleli, Dervis #2,108	Lebanese American University
60	Azerbaijan	2	2	0.1%	Kartal, Mustafa Tevfik #2,959	Azerbaijan State University of Economics (UNEC)
61	Lithuania	2	2	0.1%	Pereira, Paulo Alexandre Da Silva #5,102	Mykolas Romeris University
62	Peru	2	2	0.1%	De-la-Torre, Gabriel Enrique #9,529	Universidad San Ignacio de Loyola
63	Kuwait	2	2	0.1%	Al-Salem, S. M. #11,716	Kuwait Institute for Scientific Research
64	Yemen	2	2	0.1%	Al-Gheethi, Adel Ali Saeed #21,029	Higher Institute of Medical Sciences
65	Luxembourg	2	2	0.1%	Schymanski, Emma L. #30,159	University of Luxembourg
66	Algeria	2	2	0.1%	Bergougui, Brahim #53,928	National Higher School of Statistics and Applied Economics (ENSSEA)
67	Macao	2	2	0.1%	Zhang, Kai #57,414	Macau University of Science and Technology
68	Philippines	2	2	0.1%	Tabelin, Carlito Baltazar #68,262	Mindanao State University – Iligan Institute of Technology
69	Bahrain	2	1	0.1%	Alam, Md Shabbir #82,561	University of Bahrain
70	Palestine	2	1	0.1%	Rjoub, Husam #93,853	Palestine Polytechnic University
71	Somalia	2	0	0.1%	Warsame, Abdimalik Ali #102,697	Hormuud University
72	Uzbekistan	2	0	0.1%	Niyozov, N. N. #117,804	Tashkent State Technical University
73	Romania	1	1	0.0%	Prǎvǎlie, Remus #9,675	Universitatea din Bucuresti
74	Slovenia	1	1	0.0%	Kalčíková, Gabriela #24,249	Univerza v Ljubljani
75	Syria	1	1	0.0%	Aljerf, Loai M. #36,898	Damascus University
76	Chile	1	1	0.0%	Santibañez-González, Ernesto Del Rosário #40,530	Universidad de Talca
77	Jordan	1	1	0.0%	Sohail, Muhammad Tayyab #59,997	School of Business University of Jordan
78	Liberia	1	1	0.0%	Jones, Rena R. #74,902	National Cancer Institute
79	Hungary	1	1	0.0%	Sebestyén, Viktor #76,448	Pannon Egyetem
80	Monaco	1	1	0.0%	Metian, Marc #91,084	IAEA Marine Environment Laboratory Monaco
81	Mauritius	1	0	0.0%	Mohee, Romeela #100,796	University of Mauritius
82	Namibia	1	0	0.0%	Amesho, Kassian T.T. #103,201	University of Namibia
83	Estonia	1	0	0.0%	Usmani, Zeba #106,419	Tallinna Tehnikaülikool
84	Georgia	1	0	0.0%	Dilanchiev, Azer #109,531	International Black Sea University
85	Kazakhstan	1	0	0.0%	Karaca, Ferhat #115,346	Nazarbayev University
86	Serbia	1	0	0.0%	Onjia, Antonije E. #121,345	University of Belgrade
87	Kyrgyzstan	1	0	0.0%	Ullah, Ayat #152,833	OSCE Academy in Bishkek