Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers Citation Engineering & Technology / Environmental Science & Engineering 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 :51
climate change
carbon cycle
nitrogen cycle
ocean acidification
oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,785
36,357
0.514
* Total Citation Counts Rankings
Ranking Based On Selection :52
Environmental Science & Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,456
36,333
0.516
* Total Citation Counts Rankings
Ranking Based On Selection :53
Water-food-energy
water resources management
water footprint assessment
sustainable development
policy analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,114
37,921
0.541
* Total Citation Counts Rankings
Ranking Based On Selection :54
global carbon cycle
deforestation
climate change
forest fires
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,676
41,666
0.598
* Total Citation Counts Rankings
Ranking Based On Selection :55
Environmental analytical chemistry
Environmental monitoring
the fate of pollutants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,123
34,766
0.510
* Total Citation Counts Rankings
Ranking Based On Selection :56
land use change
global environmental change
geography
land use
land cover
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,097
38,559
0.566
* Total Citation Counts Rankings
Ranking Based On Selection :57
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,882
50,996
0.751
* Total Citation Counts Rankings
Ranking Based On Selection :58
Environmental Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,972
22,916
0.342
* Total Citation Counts Rankings
Ranking Based On Selection :59
environmental sociology
public opinion
social movements
political sociology
environmental politics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,841
22,836
0.347
* Total Citation Counts Rankings
Ranking Based On Selection :60
Environmental Biotechnology
Environmental Engineering
Biogeochemistry
Resource Recovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,720
23,484
0.357
* Total Citation Counts Rankings
Ranking Based On Selection :61
climate
change
variability
agriculture
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,030
36,427
0.560
* Total Citation Counts Rankings
Ranking Based On Selection :62
environment
global changes
carbon cycle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,915
23,299
0.359
* Total Citation Counts Rankings
Ranking Based On Selection :63
climate
climate change
Earth system modelling
aerosols
aerosol-radiation interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,037
30,702
0.479
* Total Citation Counts Rankings
Ranking Based On Selection :64
climate
climate change
model intercomparison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,337
30,474
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :65
energy
environmental science
engineering
renewable_energy
bioenergy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,905
25,396
0.404
* Total Citation Counts Rankings
Ranking Based On Selection :66
Terrestrial Carbon Cycle
Earth System Modelling
Emergent Constraints
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,725
23,752
0.379
* Total Citation Counts Rankings
Ranking Based On Selection :67
Hydrological modeling and prediction
Surface water and groundwater interaction
Hydrological response to climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,474
37,580
0.602
* Total Citation Counts Rankings
Ranking Based On Selection :68
Conservation Biology
stable isotopes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,692
18,252
0.296
* Total Citation Counts Rankings
Ranking Based On Selection :69
environmental engineering
environmental nanotechnology
water treatment
biodegradation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,475
30,477
0.496
* Total Citation Counts Rankings
Ranking Based On Selection :70
Regional climate
climate phenomena
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,956
22,599
0.371
* Total Citation Counts Rankings
Ranking Based On Selection :71
water treatment
environmental nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,782
29,995
0.502
* Total Citation Counts Rankings
Ranking Based On Selection :72
Environmental Science & Engineering
Contaminant Hydrology
Environmental Nanotechnology
Biochar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,545
46,334
0.778
* Total Citation Counts Rankings
Ranking Based On Selection :73
organohalogen compounds
flame retardants
environmental chemistry
Arctic
human exposure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,465
31,525
0.530
* Total Citation Counts Rankings
Ranking Based On Selection :74
Air quality
Climate
Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,385
33,512
0.564
* Total Citation Counts Rankings
Ranking Based On Selection :75
Spatial
spatio-temporal
and hierarchical statistical modelling
Environmental sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,152
15,234
0.258
* Total Citation Counts Rankings
Rankings
5,685
93
15
Ranking Based On Selection: 51
Nicolas Gruber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,785
36,357
0.514
climate change
carbon cycle
nitrogen cycle
ocean acidification
oceanography
* Total Citation Counts Rankings
Rankings
5,731
485
1
Ranking Based On Selection: 52
Davey Jones
Bangor University
Bangor, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,456
36,333
0.516
Environmental Science & Public Health
* Total Citation Counts Rankings
Rankings
5,792
117
2
Ranking Based On Selection: 53
Arjen Y Hoekstra
University of Twente
Enschede, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,114
37,921
0.541
Water-food-energy
water resources management
water footprint assessment
sustainable development
policy analysis
* Total Citation Counts Rankings
Rankings
5,864
120
15
Ranking Based On Selection: 54
Guido Van Der Werf
VU University of Amsterdam
Amsterdam, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,676
41,666
0.598
global carbon cycle
deforestation
climate change
forest fires
* Total Citation Counts Rankings
Rankings
6,076
162
1
Ranking Based On Selection: 55
Chen ling
Tongji University
Shanghai, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,123
34,766
0.510
Environmental analytical chemistry
Environmental monitoring
the fate of pollutants
* Total Citation Counts Rankings
Rankings
6,081
125
16
Ranking Based On Selection: 56
Peter Verburg
VU University of Amsterdam
Amsterdam, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,097
38,559
0.566
land use change
global environmental change
geography
land use
land cover
* Total Citation Counts Rankings
Rankings
6,109
164
3
Ranking Based On Selection: 57
Jun Ma 马军
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,882
50,996
0.751
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
* Total Citation Counts Rankings
Rankings
6,260
2,966
1
Ranking Based On Selection: 58
Walter V Reid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,972
22,916
0.342
* Total Citation Counts Rankings
Rankings
6,417
3,035
3
Ranking Based On Selection: 59
Riley Dunlap
Oklahoma State University Stillwater
Stillwater, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,841
22,836
0.347
environmental sociology
public opinion
social movements
political sociology
environmental politics
* Total Citation Counts Rankings
Rankings
6,438
3,042
23
Ranking Based On Selection: 60
Bruce E Rittmann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,720
23,484
0.357
Environmental Biotechnology
Environmental Engineering
Biogeochemistry
Resource Recovery
* Total Citation Counts Rankings
Rankings
6,548
261
22
Ranking Based On Selection: 61
Stuart Mark Howden
Australian National University
Canberra, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,030
36,427
0.560
climate
change
variability
agriculture
biodiversity
* Total Citation Counts Rankings
Rankings
6,563
345
1
Ranking Based On Selection: 62
Riccardo Valentini
Università degli Studi della Tuscia
Viterbo, Italy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,915
23,299
0.359
environment
global changes
carbon cycle
* Total Citation Counts Rankings
Rankings
6,715
112
1
Ranking Based On Selection: 63
Olivier Boucher
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,037
30,702
0.479
climate
climate change
Earth system modelling
aerosols
aerosol-radiation interactions
* Total Citation Counts Rankings
Rankings
6,842
3,250
3
Ranking Based On Selection: 64
Karl E Taylor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,337
30,474
0.481
climate
climate change
model intercomparison
* Total Citation Counts Rankings
Rankings
6,914
159
18
Ranking Based On Selection: 65
André Pc Faaij
University of Groningen
Groningen, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,905
25,396
0.404
energy
environmental science
engineering
renewable_energy
bioenergy
* Total Citation Counts Rankings
Rankings
6,947
596
15
Ranking Based On Selection: 66
Peter Cox
University of Exeter
Exeter, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,725
23,752
0.379
Terrestrial Carbon Cycle
Earth System Modelling
Emergent Constraints
* Total Citation Counts Rankings
Rankings
6,997
191
2
Ranking Based On Selection: 67
Xi Chen
Hohai University
Nanjing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,474
37,580
0.602
Hydrological modeling and prediction
Surface water and groundwater interaction
Hydrological response to climate change
* Total Citation Counts Rankings
Rankings
7,151
269
1
Ranking Based On Selection: 68
Keith A Hobson
Environment Canada
Ottawa, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,692
18,252
0.296
Conservation Biology
stable isotopes
* Total Citation Counts Rankings
Rankings
7,189
3,412
16
Ranking Based On Selection: 69
Pedro Jj Alvarez
Rice University
Houston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,475
30,477
0.496
environmental engineering
environmental nanotechnology
water treatment
biodegradation
* Total Citation Counts Rankings
Rankings
7,286
48
20
Ranking Based On Selection: 70
Jens Hesselbjerg Christensen
University of Copenhagen
Copenhagen, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,956
22,599
0.371
Regional climate
climate phenomena
climate change
* Total Citation Counts Rankings
Rankings
7,501
3,564
30
Ranking Based On Selection: 71
Paul Westerhoff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,782
29,995
0.502
water treatment
environmental nanotechnology
* Total Citation Counts Rankings
Rankings
7,553
3,587
32
Ranking Based On Selection: 72
Bin Gao
University of Florida
Gainesville, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,545
46,334
0.778
Environmental Science & Engineering
Contaminant Hydrology
Environmental Nanotechnology
Biochar
* Total Citation Counts Rankings
Rankings
7,565
74
4
Ranking Based On Selection: 73
Cynthia A De Wit
Stockholm University
Stockholm, Sweden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,465
31,525
0.530
organohalogen compounds
flame retardants
environmental chemistry
Arctic
human exposure
* Total Citation Counts Rankings
Rankings
7,586
28
2
Ranking Based On Selection: 74
Zbigniew Klimont
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,385
33,512
0.564
Air quality
Climate
Energy
* Total Citation Counts Rankings
Rankings
7,628
291
5
Ranking Based On Selection: 75
Noel Cressie
University of Wollongong
Wollongong, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,152
15,234
0.258
Spatial
spatio-temporal
and hierarchical statistical modelling
Environmental sciences