Citation Rankings
Highly Cited Researchers

World Resources Institute (WRI) Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the 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
United States
Nancy Harris
forest ecology
biogeochemistry
carbon cycle
land use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,669
7,998
0.750
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
Janet Ranganathan
environment
sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,490
4,758
0.501
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
Madhu Verma
Ecological Economics
Environmental Valuation
Green Accounting
Payment for Ecosystem Services
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,344
5,468
0.745
* Total Citation Counts Rankings
Ranking Based On Selection :4
United States
Fred Stolle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,781
3,483
0.514
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Lori Bird
clean energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,202
2,611
0.502
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Prathna Tc
Nanomaterials
Water treatment
Urban Water Management
Wetlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,000
1,666
0.555
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Norbert Henninger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,980
762
0.256
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Sarah Carter
Forest Monitoring
Carbon Storage
REDD+
International Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,879
2,128
0.739
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Brian Lipinski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,795
1,926
0.689
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Arief Wijaya
Environmental landscapes
climate change mitigation
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,610
1,734
0.664
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Gopal K Kadekodi
Environmental Economics
Ecological Ecoomics
Economic Development
Governance
econometrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,419
742
0.307
* Total Citation Counts Rankings
Ranking Based On Selection :13
United States
Nitya Sharma
Food Processing and Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,976
1,854
0.938
* Total Citation Counts Rankings
Ranking Based On Selection :14
United States
Lindsey Sloat
agriculture
climate
land use
livestock
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,953
1,581
0.810
* Total Citation Counts Rankings
Ranking Based On Selection :15
United States
Kathleen Buckingham
Forestry
Conservation
Landscape Restoration
Sustainable Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,778
1,325
0.745
* Total Citation Counts Rankings
Ranking Based On Selection :16
United States
David A. Gibbs
Forest monitoring
GIS
ecology
forest carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,712
1,598
0.933
* Total Citation Counts Rankings
Ranking Based On Selection :17
United States
Mikaela J. Weisse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,636
1,577
0.964
* Total Citation Counts Rankings
Ranking Based On Selection :18
United States
Dimitris Mentis
energy access
integrated planning
GIS
energy systems
development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,320
1,054
0.798
* Total Citation Counts Rankings
Ranking Based On Selection :19
United States
Helen (Hongyu) Ding
Biodiversity and Ecosystem Valuation
Socio-economic impact of LULUC and Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,302
692
0.531
* Total Citation Counts Rankings
Ranking Based On Selection :20
United States
Shashidhar Kumar Jha
Climate change vulnerability and Adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,224
1,035
0.846
* Total Citation Counts Rankings
Ranking Based On Selection :21
United States
Johannes Friedrich
Climate change
climate data
energy data
systems change
Climate Watch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,080
951
0.881
* Total Citation Counts Rankings
Ranking Based On Selection :22
United States
Francis Gassert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,048
598
0.571
* Total Citation Counts Rankings
Ranking Based On Selection :23
United States
Laura Malaguzzi Valeri
Energy Economics - Industrial Organization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
913
387
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :24
United States
Manu V. Mathai|Manu Mathai, Manu Verghese Mathai
Energy Policy
Production-Consumption Systems
Political Economy
Ecological Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
699
419
0.599
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Rene Zamora-Cristales
Forest Economics
Policy
Optimization
Landscape Restoration
Spatial Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
686
459
0.669
* Total Citation Counts Rankings
Rankings
91,034
United States
36,642
1
Ranking Based On Selection: 1
Nancy Harris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,669
7,998
0.750
forest ecology
biogeochemistry
carbon cycle
land use
* Total Citation Counts Rankings
Rankings
104,093
United States
41,159
2
Ranking Based On Selection: 2
Janet Ranganathan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,490
4,758
0.501
* Total Citation Counts Rankings
Rankings
138,498
United States
52,611
3
Ranking Based On Selection: 3
Madhu Verma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,344
5,468
0.745
Ecological Economics
Environmental Valuation
Green Accounting
Payment for Ecosystem Services
* Total Citation Counts Rankings
Rankings
150,697
United States
56,538
4
Ranking Based On Selection: 4
Fred Stolle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,781
3,483
0.514
* Total Citation Counts Rankings
Rankings
196,466
United States
70,663
5
Ranking Based On Selection: 5
Lori Bird
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,202
2,611
0.502
* Total Citation Counts Rankings
Rankings
198,903
United States
71,399
6
Ranking Based On Selection: 6
Taryn Fransen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,135
3,830
0.746
* Total Citation Counts Rankings
Rankings
321,778
United States
106,945
7
Ranking Based On Selection: 7
Prathna Tc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,000
1,666
0.555
Nanomaterials
Water treatment
Urban Water Management
Wetlands
* Total Citation Counts Rankings
Rankings
323,591
United States
107,472
8
Ranking Based On Selection: 8
Norbert Henninger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,980
762
0.256
* Total Citation Counts Rankings
Rankings
332,782
United States
110,079
9
Ranking Based On Selection: 9
Sarah Carter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,879
2,128
0.739
Forest Monitoring
Carbon Storage
REDD+
International Development
* Total Citation Counts Rankings
Rankings
340,818
United States
112,283
10
Ranking Based On Selection: 10
Brian Lipinski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,795
1,926
0.689
* Total Citation Counts Rankings
Rankings
360,082
United States
117,611
11
Ranking Based On Selection: 11
Arief Wijaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,610
1,734
0.664
Environmental landscapes
climate change mitigation
remote sensing
* Total Citation Counts Rankings
Rankings
381,894
United States
123,580
12
Ranking Based On Selection: 12
Gopal K Kadekodi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,419
742
0.307
Environmental Economics
Ecological Ecoomics
Economic Development
Governance
econometrics
* Total Citation Counts Rankings
Rankings
443,133
United States
140,236
13
Ranking Based On Selection: 13
Nitya Sharma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,976
1,854
0.938
* Total Citation Counts Rankings
Rankings
446,903
United States
141,240
14
Ranking Based On Selection: 14
Lindsey Sloat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,953
1,581
0.810
agriculture
climate
land use
livestock
ecology
* Total Citation Counts Rankings
Rankings
477,113
United States
149,351
15
Ranking Based On Selection: 15
Kathleen Buckingham
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,778
1,325
0.745
Forestry
Conservation
Landscape Restoration
Sustainable Development
* Total Citation Counts Rankings
Rankings
489,592
United States
152,600
16
Ranking Based On Selection: 16
David A. Gibbs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,712
1,598
0.933
Forest monitoring
GIS
ecology
forest carbon
* Total Citation Counts Rankings
Rankings
504,870
United States
156,688
17
Ranking Based On Selection: 17
Mikaela J. Weisse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,636
1,577
0.964
* Total Citation Counts Rankings
Rankings
578,333
United States
175,905
18
Ranking Based On Selection: 18
Dimitris Mentis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,320
1,054
0.798
energy access
integrated planning
GIS
energy systems
development
* Total Citation Counts Rankings
Rankings
583,331
United States
177,161
19
Ranking Based On Selection: 19
Helen (Hongyu) Ding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,302
692
0.531
Biodiversity and Ecosystem Valuation
Socio-economic impact of LULUC and Climate Change
* Total Citation Counts Rankings
Rankings
604,895
United States
182,698
20
Ranking Based On Selection: 20
Shashidhar Kumar Jha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,224
1,035
0.846
* Total Citation Counts Rankings
Rankings
649,860
United States
194,083
21
Ranking Based On Selection: 21
Johannes Friedrich
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,080
951
0.881
Climate change
climate data
energy data
systems change
Climate Watch
* Total Citation Counts Rankings
Rankings
660,824
United States
196,852
22
Ranking Based On Selection: 22
Francis Gassert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,048
598
0.571
* Total Citation Counts Rankings
Rankings
710,601
United States
208,986
23
Ranking Based On Selection: 23
Laura Malaguzzi Valeri
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
913
387
0.424
* Total Citation Counts Rankings
Rankings
804,884
United States
230,632
24
Ranking Based On Selection: 24
Manu V. Mathai|Manu Mathai, Manu Verghese Mathai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
699
419
0.599
Energy Policy
Production-Consumption Systems
Political Economy
Ecological Economics
* Total Citation Counts Rankings
Rankings
811,145
United States
232,022
25
Ranking Based On Selection: 25
Rene Zamora-Cristales
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
686
459
0.669
Forest Economics
Policy
Optimization
Landscape Restoration
Spatial Economics