Citation Rankings
Highly Cited Researchers
Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers 122 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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: 51
Environmental Science
Persistent Organic Pollutants
Environmental Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,102
1,456
0.693
* Total Citation Counts Rankings
Ranking Based On Selection: 52
Climate change
migration
security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,004
923
0.461
* Total Citation Counts Rankings
Ranking Based On Selection: 53
Interdisciplinary Collaboration
Science and Technology Studies
Environmental Policy
Environmental Philosophy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,939
661
0.341
* Total Citation Counts Rankings
Ranking Based On Selection: 54
Landscape Architecture
Environmental Planning
Watershed Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,856
450
0.242
* Total Citation Counts Rankings
Ranking Based On Selection: 55
Climate change
clean energy
sustainability
behavioral science
conflict facilitation and coaching
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,835
1,018
0.555
* Total Citation Counts Rankings
Ranking Based On Selection: 56
animal welfare
fish welfare
positive welfare
animal agency
human-animal relationships
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,797
1,238
0.689
* Total Citation Counts Rankings
Ranking Based On Selection: 57
traditional ecological knowledge
restoration ecology
ecological engineering
agroecology
food systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,763
786
0.446
* Total Citation Counts Rankings
Ranking Based On Selection: 58
Biomass Conversion
Solar Energy
Photocatalyst
Photophysics
Polymeric chromophores
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,607
1,058
0.658
* Total Citation Counts Rankings
Ranking Based On Selection: 59
Ecology
Entomology
Invasive Species
Conservation
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,590
544
0.342
* Total Citation Counts Rankings
Ranking Based On Selection: 60
Evolutionary Biology
Conservation Biology
Biogeography
Adaptive Radiations
Pacific Islands Invertebrates Land Snails Meiofau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,565
696
0.445
* Total Citation Counts Rankings
Ranking Based On Selection: 61
Land Systems Science
Remote Sensing
Climate Change
Spatial Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,527
749
0.491
* Total Citation Counts Rankings
Ranking Based On Selection: 62
Climate Adaptation
Tropical Climate
Climate Impacts
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,438
505
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 63
Environmental Communication
Public Participation
Social Movements
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,369
676
0.494
* Total Citation Counts Rankings
Ranking Based On Selection: 64
environmental and occupational health sciences
climate and health
maternal and child health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,249
710
0.568
* Total Citation Counts Rankings
Ranking Based On Selection: 65
Political Ecology
Climate Change
Water
Energy
Urbanization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,154
820
0.711
* Total Citation Counts Rankings
Ranking Based On Selection: 66
Environmental Risk Health & Science Communication
Political Communication
Public Perception
Pro-environmental Behavior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,068
854
0.800
* Total Citation Counts Rankings
Ranking Based On Selection: 67
Disasters
Climate Change
Health Disparities
Aging and the Life Course
Housing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
980
910
0.929
* Total Citation Counts Rankings
Ranking Based On Selection: 68
water policy
water energy nexus
chinese environmental policy
distributive justice of water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
876
294
0.336
* Total Citation Counts Rankings
Ranking Based On Selection: 69
Environmental Sociology
Environmental Inequality
Disproportionality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
867
789
0.910
* Total Citation Counts Rankings
Ranking Based On Selection: 70
Bioethics
Animal Ethics
Environmental Ethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
818
689
0.842
* Total Citation Counts Rankings
Ranking Based On Selection: 71
Environmental Microbiology
Environmental Engineering
Environmental Science
Environmental Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
810
569
0.702
* Total Citation Counts Rankings
Ranking Based On Selection: 72
Biodiversity conservation
Protected area planning and management
Environmental science
Conflict resolution
Environmental pol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
798
664
0.832
* Total Citation Counts Rankings
Ranking Based On Selection: 73
Aquatic Chemistry
Photochemistry
Natural Products
Reaction Mechanisms
Structure Elucidation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603
499
0.828
* Total Citation Counts Rankings
Ranking Based On Selection: 74
Groundwater pollution
remediation
cyclodextrin
riverbank filtration
chemodynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
600
144
0.240
* Total Citation Counts Rankings
Ranking Based On Selection: 75
air pollution
climate
biosphere
short lived climate forcers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
565
414
0.733
* Total Citation Counts Rankings
Rankings
432,203
137,517
1,138
Ranking Based On Selection: 51
Wenlong Li
New York University
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,102
1,456
0.693
Environmental Science
Persistent Organic Pollutants
Environmental Chemistry
* Total Citation Counts Rankings
Rankings
447,302
141,573
1,834
Ranking Based On Selection: 52
Shahrzad Mohtadi
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,004
923
0.461
Climate change
migration
security
* Total Citation Counts Rankings
Rankings
457,885
144,406
54
Ranking Based On Selection: 53
Paul Hirsch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,939
661
0.341
Interdisciplinary Collaboration
Science and Technology Studies
Environmental Policy
Environmental Philosophy
* Total Citation Counts Rankings
Rankings
472,007
148,241
56
Ranking Based On Selection: 54
Douglas Johnston
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,856
450
0.242
Landscape Architecture
Environmental Planning
Watershed Management
* Total Citation Counts Rankings
Rankings
475,591
149,171
1,220
Ranking Based On Selection: 55
Irina Feygina
New York University
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,835
1,018
0.555
Climate change
clean energy
sustainability
behavioral science
conflict facilitation and coaching
* Total Citation Counts Rankings
Rankings
482,443
151,003
1,232
Ranking Based On Selection: 56
Becca Franks
New York University
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,797
1,238
0.689
animal welfare
fish welfare
positive welfare
animal agency
human-animal relationships
* Total Citation Counts Rankings
Rankings
488,981
152,669
59
Ranking Based On Selection: 57
Stewart Aw Diemont
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,763
786
0.446
traditional ecological knowledge
restoration ecology
ecological engineering
agroecology
food systems
* Total Citation Counts Rankings
Rankings
520,019
160,860
63
Ranking Based On Selection: 58
Gyu Leem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,607
1,058
0.658
Biomass Conversion
Solar Energy
Photocatalyst
Photophysics
Polymeric chromophores
* Total Citation Counts Rankings
Rankings
523,689
161,798
64
Ranking Based On Selection: 59
Dylan Parry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,590
544
0.342
Ecology
Entomology
Invasive Species
Conservation
Climate Change
* Total Citation Counts Rankings
Rankings
528,993
163,211
65
Ranking Based On Selection: 60
Rebecca J Rundell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,565
696
0.445
Evolutionary Biology
Conservation Biology
Biogeography
Adaptive Radiations
Pacific Islands Invertebrates Land Snails Meiofau
* Total Citation Counts Rankings
Rankings
537,344
165,473
2,058
Ranking Based On Selection: 61
Christopher S Galletti
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,527
749
0.491
Land Systems Science
Remote Sensing
Climate Change
Spatial Analysis
* Total Citation Counts Rankings
Rankings
557,898
170,764
2,101
Ranking Based On Selection: 62
Lareef Zubair
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,438
505
0.351
Climate Adaptation
Tropical Climate
Climate Impacts
Environmental Engineering
* Total Citation Counts Rankings
Rankings
574,930
175,276
68
Ranking Based On Selection: 63
Andrea Feldpausch Parker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,369
676
0.494
Environmental Communication
Public Participation
Social Movements
* Total Citation Counts Rankings
Rankings
607,098
183,487
76
Ranking Based On Selection: 64
Laura A Geer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,249
710
0.568
environmental and occupational health sciences
climate and health
maternal and child health
* Total Citation Counts Rankings
Rankings
635,429
190,631
76
Ranking Based On Selection: 65
Joshua Cousins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,154
820
0.711
Political Ecology
Climate Change
Water
Energy
Urbanization
* Total Citation Counts Rankings
Rankings
662,922
197,552
80
Ranking Based On Selection: 66
Silje Kristiansen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,068
854
0.800
Environmental Risk Health & Science Communication
Political Communication
Public Perception
Pro-environmental Behavior
* Total Citation Counts Rankings
Rankings
693,795
32,156
20
Ranking Based On Selection: 67
Alexis A Merdjanoff
New York University Shanghai
Pudong, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
980
910
0.929
Disasters
Climate Change
Health Disparities
Aging and the Life Course
Housing
* Total Citation Counts Rankings
Rankings
734,371
214,772
2,353
Ranking Based On Selection: 68
Marina Lou
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
876
294
0.336
water policy
water energy nexus
chinese environmental policy
distributive justice of water
* Total Citation Counts Rankings
Rankings
737,744
215,525
87
Ranking Based On Selection: 69
Mary B Collins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
867
789
0.910
Environmental Sociology
Environmental Inequality
Disproportionality
* Total Citation Counts Rankings
Rankings
758,267
34,773
37
Ranking Based On Selection: 70
Jeff Sebo
New York University Shanghai
Pudong, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
818
689
0.842
Bioethics
Animal Ethics
Environmental Ethics
* Total Citation Counts Rankings
Rankings
761,784
221,044
88
Ranking Based On Selection: 71
Yaqi You
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
810
569
0.702
Environmental Microbiology
Environmental Engineering
Environmental Science
Environmental Health
* Total Citation Counts Rankings
Rankings
766,960
222,214
2,389
Ranking Based On Selection: 72
Joshua D Fisher
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
798
664
0.832
Biodiversity conservation
Protected area planning and management
Environmental science
Conflict resolution
Environmental pol
* Total Citation Counts Rankings
Rankings
861,563
242,752
92
Ranking Based On Selection: 73
Nicholas C Pflug
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603
499
0.828
Aquatic Chemistry
Photochemistry
Natural Products
Reaction Mechanisms
Structure Elucidation
* Total Citation Counts Rankings
Rankings
863,576
243,156
595
Ranking Based On Selection: 74
William Blanford
City University of New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
600
144
0.240
Groundwater pollution
remediation
cyclodextrin
riverbank filtration
chemodynamics
* Total Citation Counts Rankings
Rankings
883,182
247,213
2,505
Ranking Based On Selection: 75
Olivia Clifton
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
565
414
0.733
air pollution
climate
biosphere
short lived climate forcers