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
Climate Change
Computational Methods
Trade and Climate
Astrophysics
Microtomography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
165,435
17,539
0.106
* Total Citation Counts Rankings
Ranking Based On Selection :2
sustainability
AI
climate
energy
economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,376
10,293
0.390
* Total Citation Counts Rankings
Ranking Based On Selection :3
Environmental and Resource Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,291
7,219
0.395
* Total Citation Counts Rankings
Ranking Based On Selection :4
environmental economics
energy economics
climate change
electricity regulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,961
5,731
0.319
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,387
5,657
0.368
* Total Citation Counts Rankings
Ranking Based On Selection :6
environmental economics
energy
natural resources
climate policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,282
4,298
0.381
* Total Citation Counts Rankings
Ranking Based On Selection :7
Environmental economics and policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,392
4,039
0.389
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,589
2,753
0.287
* Total Citation Counts Rankings
Ranking Based On Selection :9
Resource economics
land use
forest modeling
forest economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,322
2,365
0.254
* Total Citation Counts Rankings
Ranking Based On Selection :10
Environmental and resource economics
public economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,730
2,670
0.345
* Total Citation Counts Rankings
Ranking Based On Selection :11
Resources and Environment
Public Policy
Public Investment
Environmental Markets
Flood Risk
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,462
1,040
0.233
* Total Citation Counts Rankings
Ranking Based On Selection :12
energy and environment
environmental systems
environmental policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,822
1,305
0.341
* Total Citation Counts Rankings
Ranking Based On Selection :13
Invasive Species Management
Species Conservation
Rural Coastal Adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,267
2,157
0.660
* Total Citation Counts Rankings
Ranking Based On Selection :14
Energy policy
environmental policy
climate policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,956
1,411
0.721
* Total Citation Counts Rankings
Ranking Based On Selection :15
Economics
Energy
Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,741
1,672
0.960
* Total Citation Counts Rankings
Ranking Based On Selection :16
Environmental Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,557
1,219
0.783
* Total Citation Counts Rankings
Ranking Based On Selection :17
climate policy
climate impacts
social cost of carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,372
1,185
0.864
* Total Citation Counts Rankings
Ranking Based On Selection :18
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
527
423
0.803
* Total Citation Counts Rankings
Ranking Based On Selection :19
geospatial
environment
climate change
policy
land use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
515
498
0.967
* Total Citation Counts Rankings
Ranking Based On Selection :20
Environmental and energy economics
Public economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
320
0.997
* Total Citation Counts Rankings
Ranking Based On Selection :21
environment
energy
economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
241
240
0.996
* Total Citation Counts Rankings
Ranking Based On Selection :22
Environmental Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
127
0.562
* Total Citation Counts Rankings
Ranking Based On Selection :23
Energy Economics
Political Economy
Public Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
191
0.990
* Total Citation Counts Rankings
Ranking Based On Selection :24
Environmental and Natural Resource Economics
Agricultural Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93
78
0.839
* Total Citation Counts Rankings
Ranking Based On Selection :25
environmental epidemiology
social epidemiology
urban health
climate and health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84
84
1.000
Brian P Flannery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
165,435
17,539
0.106
Climate Change
Computational Methods
Trade and Climate
Astrophysics
Microtomography
Richard G Newell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,376
10,293
0.390
sustainability
AI
climate
energy
economics
Alan Krupnick
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,291
7,219
0.395
Environmental and Resource Economics
Karen Palmer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,961
5,731
0.319
environmental economics
energy economics
climate change
electricity regulation
William Pizer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,387
5,657
0.368
Carolyn Fischer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,282
4,298
0.381
environmental economics
energy
natural resources
climate policy
James Boyd
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,392
4,039
0.389
Environmental economics and policy
Michael A Toman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,589
2,753
0.287
David Wear
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,322
2,365
0.254
Resource economics
land use
forest modeling
forest economics
Margaret Walls
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,730
2,670
0.345
Environmental and resource economics
public economics
Leonard Shabman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,462
1,040
0.233
Resources and Environment
Public Policy
Public Investment
Environmental Markets
Flood Risk
Jhih-Shyang Shih
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,822
1,305
0.341
energy and environment
environmental systems
environmental policy
Becky Epanchin-Niell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,267
2,157
0.660
Invasive Species Management
Species Conservation
Rural Coastal Adaptation
Daniel Raimi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,956
1,411
0.721
Brian C Prest
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,741
1,672
0.960
Marc Ac Hafstead
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,557
1,219
0.783
Environmental Economics
Kevin Rennert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,372
1,185
0.864
Matthew Wibbenmeyer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
527
423
0.803
Alexandra Thompson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
515
498
0.967
geospatial
environment
climate change
policy
land use
Yanjun Liao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
321
320
0.997
Environmental and energy economics
Public economics
Seth Villanueva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
241
240
0.996
environment
energy
economics
Josh Blonz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
127
0.562
Environmental Economics
Nicholas Roy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
191
0.990
Energy Economics
Political Economy
Public Policy
Yunguang Chen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93
78
0.839
Environmental and Natural Resource Economics
Agricultural Economics
Erin Jane Campbell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84
84
1.000
environmental epidemiology
social epidemiology
urban health
climate and health