Citation Rankings
Highly Cited Researchers
United Nations Highly Cited Researchers CitationOthers Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Unconventional water resources
water recycling and reuse
water quality and environmental health
water security
land degradat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,716
11,378
0.577
* Total Citation Counts Rankings
Ranking Based On Selection :2
E-waste
Sustainable Production
Consumption and Disposal
Technology Transfer
Environmental Policies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,938
6,448
0.649
* Total Citation Counts Rankings
Ranking Based On Selection :3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,487
4,912
0.518
* Total Citation Counts Rankings
Ranking Based On Selection :4
SDGs
Sustainable Development
Development Coordination
Strategic programming
Science coordination
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,517
2,926
0.449
* Total Citation Counts Rankings
Ranking Based On Selection :5
Professor of Environmental Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,687
2,764
0.590
* Total Citation Counts Rankings
Ranking Based On Selection :6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,219
1,865
0.442
* Total Citation Counts Rankings
Ranking Based On Selection :7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,060
854
0.210
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,805
3,430
0.901
* Total Citation Counts Rankings
Ranking Based On Selection :9
E-waste
Waste Management
Life Cycle Asssessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,780
2,256
0.597
* Total Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,722
3,672
0.987
* Total Citation Counts Rankings
Ranking Based On Selection :11
Human Mobility
Climate Mobility
Environmental Migration
Displacement
Loss and Damage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,484
2,402
0.689
* Total Citation Counts Rankings
Ranking Based On Selection :12
Water and climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,909
2,107
0.724
* Total Citation Counts Rankings
Ranking Based On Selection :13
Maternal Newborn Child & Adolescent Heath and Health Systems Specialist
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,870
1,762
0.614
* Total Citation Counts Rankings
Ranking Based On Selection :14
vulnerability
systemic risk
risk management
adaptation
hydrological extremes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,834
2,287
0.807
* Total Citation Counts Rankings
Ranking Based On Selection :15
ESD
UNESCO
education for sustainable development
comparative education
sociology of ed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,710
2,002
0.739
* Total Citation Counts Rankings
Ranking Based On Selection :16
environmental exposures and health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,565
1,217
0.474
* Total Citation Counts Rankings
Ranking Based On Selection :17
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,125
1,323
0.623
* Total Citation Counts Rankings
Ranking Based On Selection :18
ewaste management
sustainable development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,953
998
0.511
* Total Citation Counts Rankings
Ranking Based On Selection :19
Mortality
Fertility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,833
614
0.335
* Total Citation Counts Rankings
Ranking Based On Selection :20
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
1,581
0.888
* Total Citation Counts Rankings
Ranking Based On Selection :21
AI and education
digital learning
ICT in education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,735
1,108
0.639
* Total Citation Counts Rankings
Ranking Based On Selection :22
théorie politique
politique comparée
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,623
356
0.219
* Total Citation Counts Rankings
Ranking Based On Selection :23
Industrialization
Technology and Innovation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,531
539
0.352
* Total Citation Counts Rankings
Ranking Based On Selection :24
Digital Trust
Digital Competences
Panel Studies
Policy Evaluation
Impact Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,507
941
0.624
* Total Citation Counts Rankings
Ranking Based On Selection :25
Water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,506
321
0.213
* Total Citation Counts Rankings
Rankings
40,116
592
2
Ranking Based On Selection: 1
Manzoor Qadir
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,716
11,378
0.577
Unconventional water resources
water recycling and reuse
water quality and environmental health
water security
land degradat
* Total Citation Counts Rankings
Rankings
96,488
1,747
6
Ranking Based On Selection: 2
Ruediger Kuehr
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,938
6,448
0.649
E-waste
Sustainable Production
Consumption and Disposal
Technology Transfer
Environmental Policies
* Total Citation Counts Rankings
Rankings
101,617
40,531
2
Ranking Based On Selection: 3
Neville Ash
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,487
4,912
0.518
* Total Citation Counts Rankings
Rankings
153,419
57,697
4
Ranking Based On Selection: 4
Driss Haboudane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,517
2,926
0.449
SDGs
Sustainable Development
Development Coordination
Strategic programming
Science coordination
* Total Citation Counts Rankings
Rankings
212,380
4,324
11
Ranking Based On Selection: 5
Jamal Hisham Hashim
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,687
2,764
0.590
* Total Citation Counts Rankings
Rankings
234,113
82,232
10
Ranking Based On Selection: 6
Giovanni Stumpo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,219
1,865
0.442
* Total Citation Counts Rankings
Rankings
242,601
84,789
12
Ranking Based On Selection: 7
Andres Vikat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,060
854
0.210
* Total Citation Counts Rankings
Rankings
257,192
7,910
8
Ranking Based On Selection: 8
Kirsten Isensee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,805
3,430
0.901
* Total Citation Counts Rankings
Rankings
258,690
5,272
16
Ranking Based On Selection: 9
Feng Wang
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,780
2,256
0.597
* Total Citation Counts Rankings
Rankings
262,222
90,436
13
Ranking Based On Selection: 10
Nora Marie Weyer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,722
3,672
0.987
* Total Citation Counts Rankings
Rankings
277,465
5,684
19
Ranking Based On Selection: 11
Kees Van Der Geest
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,484
2,402
0.689
Human Mobility
Climate Mobility
Environmental Migration
Displacement
Loss and Damage
* Total Citation Counts Rankings
Rankings
322,895
10,114
9
Ranking Based On Selection: 12
Koen Verbist
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,909
2,107
0.724
* Total Citation Counts Rankings
Rankings
326,460
108,828
2
Ranking Based On Selection: 13
Dewan Md Emdadul Hoque
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,870
1,762
0.614
Maternal Newborn Child & Adolescent Heath and Health Systems Specialist
* Total Citation Counts Rankings
Rankings
329,769
6,767
21
Ranking Based On Selection: 14
Michael Enlocher
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,834
2,287
0.807
vulnerability
systemic risk
risk management
adaptation
hydrological extremes
* Total Citation Counts Rankings
Rankings
341,957
10,770
10
Ranking Based On Selection: 15
Yoko Mochizuki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,710
2,002
0.739
ESD
UNESCO
education for sustainable development
comparative education
sociology of ed
* Total Citation Counts Rankings
Rankings
357,358
117,437
17
Ranking Based On Selection: 16
Andrea Hinwood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,565
1,217
0.474
* Total Citation Counts Rankings
Rankings
411,750
132,400
21
Ranking Based On Selection: 17
Masato Abe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,125
1,323
0.623
* Total Citation Counts Rankings
Rankings
437,993
8,963
25
Ranking Based On Selection: 18
Federico Magalini
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,953
998
0.511
* Total Citation Counts Rankings
Rankings
458,336
145,042
22
Ranking Based On Selection: 19
Kirill Andreev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,833
614
0.335
* Total Citation Counts Rankings
Rankings
467,548
9,563
28
Ranking Based On Selection: 20
Keshav Parajuly
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
1,581
0.888
* Total Citation Counts Rankings
Rankings
475,766
14,969
13
Ranking Based On Selection: 21
Fengchun Miao苗逢春|苗逢春
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,735
1,108
0.639
* Total Citation Counts Rankings
Rankings
497,888
15,630
16
Ranking Based On Selection: 22
John Crowley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,623
356
0.219
* Total Citation Counts Rankings
Rankings
517,592
10,495
31
Ranking Based On Selection: 23
Ludovico Alcorta
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,531
539
0.352
* Total Citation Counts Rankings
Rankings
522,825
10,595
32
Ranking Based On Selection: 24
Chew Han Ei
United Nations University
Tokyo, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,507
941
0.624
Digital Trust
Digital Competences
Panel Studies
Policy Evaluation
Impact Assessment
* Total Citation Counts Rankings
Rankings
523,175
16,390
19
Ranking Based On Selection: 25
Youssef Filali-Meknassi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,506
321
0.213