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
Environmental Science
Agriculture
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,171
17,962
0.398
* Total Citation Counts Rankings
Ranking Based On Selection :2
environment
ecology
agriculture
water
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,385
11,314
0.413
* Total Citation Counts Rankings
Ranking Based On Selection :3
environmental sociology
social movements
political sociology
sociology of risk
sociology of
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,647
11,282
0.546
* Total Citation Counts Rankings
Ranking Based On Selection :4
Environmental Engineering
Microbial Ecology
Diagnostics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,240
4,590
0.497
* Total Citation Counts Rankings
Ranking Based On Selection :5
Molecular mechanisms of photosynthetic regulation of plant tolerance/resilience to environmental stresses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,816
5,796
0.742
* Total Citation Counts Rankings
Ranking Based On Selection :6
Environmental & resource economics
volitional choice and exchange
economic growth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,447
1,115
0.150
* Total Citation Counts Rankings
Ranking Based On Selection :7
Environmental policy
biofuels
Corporate environmental management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,729
2,627
0.390
* Total Citation Counts Rankings
Ranking Based On Selection :8
environmental microbiology
water quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,571
3,539
0.539
* Total Citation Counts Rankings
Ranking Based On Selection :9
Integrated modeling
Climate Change & Extremes
Natural-Human Interactions
Food-Water-Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,541
5,855
0.895
* Total Citation Counts Rankings
Ranking Based On Selection :10
Environmental Microbiology
Stable Isotope Probing
Bioremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,082
5,132
0.844
* Total Citation Counts Rankings
Ranking Based On Selection :11
Common-pool Resources Management
Coupled Human and Natural Systems
Ecological Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,423
3,949
0.728
* Total Citation Counts Rankings
Ranking Based On Selection :12
participatory modeling
climate change adaptation
sustainability science
food and agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,267
1,930
0.851
* Total Citation Counts Rankings
Ranking Based On Selection :13
Energy Transition
Environmental Sociology
Health and Well-Being
Methodology
Rural Sociology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,938
1,757
0.907
* Total Citation Counts Rankings
Ranking Based On Selection :14
africa
climate change
land use change
ict for development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,927
642
0.333
* Total Citation Counts Rankings
Ranking Based On Selection :15
Sustainability
risk perception
natural resource governance
psychological distance
risk communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,452
1,295
0.892
* Total Citation Counts Rankings
Ranking Based On Selection :16
Environmental Sustainability / Alternative Fuel Vehicles
Operations Research
Public Transit
Network Modeling
Travel Demand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,201
967
0.805
* Total Citation Counts Rankings
Ranking Based On Selection :17
Water and Wastewater Microbiology
Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
752
536
0.713
* Total Citation Counts Rankings
Ranking Based On Selection :18
Environmental Microbiology
Wastewater-based Epidemiology
digital PCR
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
222
221
0.995
* Total Citation Counts Rankings
Ranking Based On Selection :19
Transformative SES design
ecology
environmental science
systems thinking
decision and learning science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
43
0.935
* Total Citation Counts Rankings
Ranking Based On Selection :20
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :21
Inclusive Design
Evidence-based Design
Multiculturalism
Environmental Perception and Behavior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
G Philip Robertson
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,171
17,962
0.398
Environmental Science
Agriculture
Ecology
Stephen K Hamilton
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,385
11,314
0.413
environment
ecology
agriculture
water
biogeochemistry
Aaron M Mccright
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,647
11,282
0.546
environmental sociology
social movements
political sociology
sociology of risk
sociology of
Syed Hashsham
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,240
4,590
0.497
Environmental Engineering
Microbial Ecology
Diagnostics
Jun Liu
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,816
5,796
0.742
Molecular mechanisms of photosynthetic regulation of plant tolerance/resilience to environmental stresses
John P Hoehn
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,447
1,115
0.150
Environmental & resource economics
volitional choice and exchange
economic growth
Satish Joshi|SV Joshi
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,729
2,627
0.390
Environmental policy
biofuels
Corporate environmental management
Irene Xagoraraki
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,571
3,539
0.539
environmental microbiology
water quality
Yadu Pokhrel
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,541
5,855
0.895
Integrated modeling
Climate Change & Extremes
Natural-Human Interactions
Food-Water-Energy
Weimin Sun
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,082
5,132
0.844
Environmental Microbiology
Stable Isotope Probing
Bioremediation
Wu Yang
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,423
3,949
0.728
Common-pool Resources Management
Coupled Human and Natural Systems
Ecological Economics
Laura Schmitt Olabisi
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,267
1,930
0.851
participatory modeling
climate change adaptation
sustainability science
food and agriculture
Adam Mayer
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,938
1,757
0.907
Energy Transition
Environmental Sociology
Health and Well-Being
Methodology
Rural Sociology
Jennifer M Olson
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,927
642
0.333
africa
climate change
land use change
ict for development
Adam Zwickle
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,452
1,295
0.892
Sustainability
risk perception
natural resource governance
psychological distance
risk communication
Mehrnaz Ghamami
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,201
967
0.805
Environmental Sustainability / Alternative Fuel Vehicles
Operations Research
Public Transit
Network Modeling
Travel Demand
Farag A Samhan
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
752
536
0.713
Water and Wastewater Microbiology
Molecular Biology
Liang Luke Zhao|Liang Zhao
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
222
221
0.995
Environmental Microbiology
Wastewater-based Epidemiology
digital PCR
Patricia Mckay
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
43
0.935
Transformative SES design
ecology
environmental science
systems thinking
decision and learning science
Romuald Gonety
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Environmental Engineering
Rabia Faizan
Michigan State University
East Lansing, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Inclusive Design
Evidence-based Design
Multiculturalism
Environmental Perception and Behavior