Citation Rankings
Highly Cited Researchers
Law / Environmental Law Highly Cited Researchers 329 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
natural resources law
environmental law
ecosystem services
complex adaptive systems
climate chang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,351
4,491
0.336
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Administrative Law
Environmental Law
Public Policy
Regulatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,531
4,403
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 3
climate change law
environmental law
international environmental law
climate polic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,885
6,624
0.557
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Just Transition
Energy Justice
Energy and Natural Resource Law
Planning & Environmental Law and Polic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,983
9,235
0.841
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Environmental Law and Policy
Environmental Change
Ecosystem Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,275
5,649
0.550
* Total Citation Counts Rankings
Ranking Based On Selection: 6
EU Law including EU external relations
Environmental Law
WTO La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,044
2,999
0.332
* Total Citation Counts Rankings
Ranking Based On Selection: 7
environmental law and policy
climate change
private governance
energy law and polic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,520
3,140
0.369
* Total Citation Counts Rankings
Ranking Based On Selection: 8
environmental law
natural resources law
water law
environmental justic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,473
6,633
0.888
* Total Citation Counts Rankings
Ranking Based On Selection: 9
environmental law
transnational governance
sociology of law
human rights
legal theor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,848
1,060
0.155
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Intellectual Property
Law and Technology
Environmental Law
Patent Law
Copyright La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,808
1,467
0.215
* Total Citation Counts Rankings
Ranking Based On Selection: 11
environmental governance
wildlife trade
environmental law
incentive-based conservation
orchid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,745
3,853
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Environmental Law
Climate Change
Water Law
Public Trust Doctrin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,362
2,804
0.441
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Global Environmental Governance
Global Environmental Politics
International Environmental La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,958
5,199
0.873
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Environmental Law
Environmental Damage
Civl Liability
Constitucional Environmental La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,316
1,285
0.242
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Environmental law
animal law
climate change
torts
products liabilit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,165
1,008
0.195
* Total Citation Counts Rankings
Ranking Based On Selection: 16
science-policy
environmental la
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,956
1,295
0.261
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Environmental law
Natural resources law
Administrative La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,775
1,332
0.279
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Arctic
international environmental law
security
human rights
indigenous people
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,755
1,929
0.406
* Total Citation Counts Rankings
Ranking Based On Selection: 19
International Environmental Law
Law of the Sea
Climate Change
Biodiversit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,452
1,389
0.312
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Environmental law
environmental rights
environmental constitutionalism
Anthropocene
earth syste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,444
3,362
0.757
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Environmental La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,155
2,227
0.536
* Total Citation Counts Rankings
Ranking Based On Selection: 22
environmental law
natural resources law
water law
property law
land use la
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,143
579
0.140
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Renenewable energy
energy policy
ocean governanc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,945
2,428
0.615
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Law
Environmental law
Property Law
Gende
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,856
1,199
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Environmental Law and Policy
Environmental Justice
Human RIghts and Environment
Urban Sustainability
Rights of Natur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,848
2,293
0.596
* Total Citation Counts Rankings
Rankings
74,370
30,613
258
Ranking Based On Selection: 1
JB Ruhl
Vanderbilt University
Nashville, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,351
4,491
0.336
natural resources law
environmental law
ecosystem services
complex adaptive systems
climate chang
* Total Citation Counts Rankings
Rankings
80,307
32,735
519
Ranking Based On Selection: 2
Cary Coglianese
University of Pennsylvania
Philadelphia, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,531
4,403
0.351
Administrative Law
Environmental Law
Public Policy
Regulatio
* Total Citation Counts Rankings
Rankings
85,713
467
43
Ranking Based On Selection: 3
Harro van Asselt
University of Eastern Finland
Joensuu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,885
6,624
0.557
climate change law
environmental law
international environmental law
climate polic
* Total Citation Counts Rankings
Rankings
94,212
7,890
447
Ranking Based On Selection: 4
Raphael J Heffron
University of Cambridge
Cambridge, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,983
9,235
0.841
Just Transition
Energy Justice
Energy and Natural Resource Law
Planning & Environmental Law and Polic
* Total Citation Counts Rankings
Rankings
101,787
40,279
31
Ranking Based On Selection: 5
Ahjond Garmestani
US Environmental Protection Agency
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,275
5,649
0.550
Environmental Law and Policy
Environmental Change
Ecosystem Managemen
* Total Citation Counts Rankings
Rankings
117,711
4,815
16
Ranking Based On Selection: 6
Joanne Scott
European University Institute
Fiesole, Italy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,044
2,999
0.332
EU Law including EU external relations
Environmental Law
WTO La
* Total Citation Counts Rankings
Rankings
125,804
48,388
405
Ranking Based On Selection: 7
Michael Vandenbergh
Vanderbilt University
Nashville, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,520
3,140
0.369
environmental law and policy
climate change
private governance
energy law and polic
* Total Citation Counts Rankings
Rankings
145,176
11,598
32
Ranking Based On Selection: 8
Jona Razzaque
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,473
6,633
0.888
environmental law
natural resources law
water law
environmental justic
* Total Citation Counts Rankings
Rankings
159,083
59,037
216
Ranking Based On Selection: 9
Errol Meidinger
University at Buffalo
Buffalo, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,848
1,060
0.155
environmental law
transnational governance
sociology of law
human rights
legal theor
* Total Citation Counts Rankings
Rankings
160,046
59,338
914
Ranking Based On Selection: 10
Peter Menell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,808
1,467
0.215
Intellectual Property
Law and Technology
Environmental Law
Patent Law
Copyright La
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
161,615
12,703
130
Ranking Based On Selection: 11
Jacob Phelps
Lancaster University
Lancaster, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,745
3,853
0.571
environmental governance
wildlife trade
environmental law
incentive-based conservation
orchid
* Total Citation Counts Rankings
Rankings
171,674
63,006
425
Ranking Based On Selection: 12
Robin Craig
University of Utah
Salt Lake City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,362
2,804
0.441
Environmental Law
Climate Change
Water Law
Public Trust Doctrin
* Total Citation Counts Rankings
Rankings
183,402
4,324
513
Ranking Based On Selection: 13
Rakhyun E Kim|Rak Kim, Rakhyun Kim, Rak Hyun Kim
Utrecht University
Utrecht, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,958
5,199
0.873
Global Environmental Governance
Global Environmental Politics
International Environmental La
* Total Citation Counts Rankings
Rankings
205,096
4,308
95
Ranking Based On Selection: 14
Jose Rubens Morato Leite
Universidade Federal de Santa Catarina UFSC
Florianopolis, Brazil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,316
1,285
0.242
Environmental Law
Environmental Damage
Civl Liability
Constitucional Environmental La
* Total Citation Counts Rankings
Rankings
210,920
74,895
888
Ranking Based On Selection: 15
Douglas Kysar
Yale University
New Haven, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,165
1,008
0.195
Environmental law
animal law
climate change
torts
products liabilit
* Total Citation Counts Rankings
Rankings
219,474
77,387
764
Ranking Based On Selection: 16
Wendy Wagner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,956
1,295
0.261
* Total Citation Counts Rankings
Rankings
227,315
79,713
214
Ranking Based On Selection: 17
Robert Glicksman
George Washington University
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,775
1,332
0.279
Environmental law
Natural resources law
Administrative La
* Total Citation Counts Rankings
Rankings
228,198
1,400
7
Ranking Based On Selection: 18
Timo Koivurova
University of Lapland
Rovaniemi, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,755
1,929
0.406
Arctic
international environmental law
security
human rights
indigenous people
* Total Citation Counts Rankings
Rankings
242,424
84,143
226
Ranking Based On Selection: 19
David Freestone
George Washington University
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,452
1,389
0.312
International Environmental Law
Law of the Sea
Climate Change
Biodiversit
* Total Citation Counts Rankings
Rankings
242,786
1,014
42
Ranking Based On Selection: 20
Louis J. Kotzé
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,444
3,362
0.757
Environmental law
environmental rights
environmental constitutionalism
Anthropocene
earth syste
* Total Citation Counts Rankings
Rankings
258,548
88,843
1,212
Ranking Based On Selection: 21
Eric Biber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,155
2,227
0.536
* Total Citation Counts Rankings
Rankings
259,263
89,040
1,136
Ranking Based On Selection: 22
Bradley C Karkkainen
University of Minnesota Twin Cities
Minneapolis, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,143
579
0.140
environmental law
natural resources law
water law
property law
land use la
* Total Citation Counts Rankings
Rankings
270,707
92,341
1
Ranking Based On Selection: 23
Glen Wright
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,945
2,428
0.615
Renenewable energy
energy policy
ocean governanc
* Total Citation Counts Rankings
Rankings
276,123
138
37
Ranking Based On Selection: 24
Patricia Kameri-Mbote
University of Nairobi
Nairobi, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,856
1,199
0.311
* Total Citation Counts Rankings
Rankings
276,613
11,522
1,070
Ranking Based On Selection: 25
David R Boyd
University of British Columbia
Vancouver, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,848
2,293
0.596
Environmental Law and Policy
Environmental Justice
Human RIghts and Environment
Urban Sustainability
Rights of Natur