Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers CitationEngineering & 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 :76
Air quality
Climate
Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,759
32,916
0.560
* Total Citation Counts Rankings
Ranking Based On Selection :77
Cultural evolution
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,604
17,341
0.296
* Total Citation Counts Rankings
Ranking Based On Selection :78
Advanced biological waste treatment processes
membrane technologies
alternative water resources
resource recovery
environmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,520
44,069
0.766
* Total Citation Counts Rankings
Ranking Based On Selection :79
air pollution
exposure
built environment
health effects
GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,906
28,683
0.504
* Total Citation Counts Rankings
Ranking Based On Selection :80
environmental engineering and science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,780
9,496
0.167
* Total Citation Counts Rankings
Ranking Based On Selection :81
Limnology
Paleolimnology
Limnogeology
Arctic
Diatoms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,210
19,149
0.341
* Total Citation Counts Rankings
Ranking Based On Selection :82
environmental engineering
environmental science
biogeochemistry
air pollution effects
human disturbance of ecosystems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,749
14,418
0.259
* Total Citation Counts Rankings
Ranking Based On Selection :83
environmental management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,668
18,341
0.329
* Total Citation Counts Rankings
Ranking Based On Selection :84
Environmental Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,527
51,313
0.924
* Total Citation Counts Rankings
Ranking Based On Selection :85
climate
vegetation
drought
adaptation
environmental education and engagement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,505
15,195
0.274
* Total Citation Counts Rankings
Ranking Based On Selection :86
Urban Water Management
Environmental Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,672
33,026
0.604
* Total Citation Counts Rankings
Ranking Based On Selection :87
Climate Change
Atmospheric Dynamics
Stratosphere
Paleoclimate
Hydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,187
10,807
0.199
* Total Citation Counts Rankings
Ranking Based On Selection :88
Environmental Chemistry
sustainable adsorbents
Biochar
Biochar use in water
soil & climate change mitigation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,293
27,088
0.508
* Total Citation Counts Rankings
Ranking Based On Selection :89
Envrionmental Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,450
24,576
0.469
* Total Citation Counts Rankings
Ranking Based On Selection :90
environmental science
chemical engineering
water treatment
catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,036
31,834
0.612
* Total Citation Counts Rankings
Ranking Based On Selection :91
Industrial Wastewater Treatment
Water Quality
Environmental Monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,771
49,227
0.951
* Total Citation Counts Rankings
Ranking Based On Selection :92
air pollution and health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,408
23,207
0.451
* Total Citation Counts Rankings
Ranking Based On Selection :93
Environmental Public Health
Climate Change
Built Environment
Land use change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,028
20,644
0.405
* Total Citation Counts Rankings
Ranking Based On Selection :94
Environmental sciences
policy
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,755
16,533
0.326
* Total Citation Counts Rankings
Ranking Based On Selection :95
climate change mitigation
carbon dioxide removal
evidence synthesis
data science for evidence synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,480
34,759
0.689
* Total Citation Counts Rankings
Ranking Based On Selection :96
Air pollution & health
environmental epidemiology
public health
epidemiology
air pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,464
20,348
0.403
* Total Citation Counts Rankings
Ranking Based On Selection :97
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,454
17,142
0.340
* Total Citation Counts Rankings
Ranking Based On Selection :98
regional climate change
downscaling
Third Pole
water balance
earth system science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,118
30,898
0.617
* Total Citation Counts Rankings
Ranking Based On Selection :99
Environmental History
History of Science
Research Policy
Environmental Humanities
Climate Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,073
28,546
0.570
* Total Citation Counts Rankings
Ranking Based On Selection :100
Environmental Science
Air Pollution
Aerosol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,749
14,206
0.286
* Total Citation Counts Rankings
Rankings
7,665
29
2
Ranking Based On Selection: 76
Zbigniew Klimont
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,759
32,916
0.560
Air quality
Climate
Energy
* Total Citation Counts Rankings
Rankings
7,693
3,649
21
Ranking Based On Selection: 77
Peter Richerson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,604
17,341
0.296
Cultural evolution
ecology
* Total Citation Counts Rankings
Rankings
7,914
306
7
Ranking Based On Selection: 78
Huu Hao Ngo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,520
44,069
0.766
Advanced biological waste treatment processes
membrane technologies
alternative water resources
resource recovery
environmen
* Total Citation Counts Rankings
Rankings
8,056
3,834
81
Ranking Based On Selection: 79
Michael Jerrett
University of California Los Angeles
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,906
28,683
0.504
air pollution
exposure
built environment
health effects
GIS
* Total Citation Counts Rankings
Rankings
8,094
3,848
189
Ranking Based On Selection: 80
Perry Mccarty
Stanford University
Stanford, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,780
9,496
0.167
environmental engineering and science
* Total Citation Counts Rankings
Rankings
8,222
309
6
Ranking Based On Selection: 81
John Smol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,210
19,149
0.341
Limnology
Paleolimnology
Limnogeology
Arctic
Diatoms
* Total Citation Counts Rankings
Rankings
8,341
3,976
12
Ranking Based On Selection: 82
Charles T Driscoll
Syracuse University
Syracuse, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,749
14,418
0.259
environmental engineering
environmental science
biogeochemistry
air pollution effects
human disturbance of ecosystems
* Total Citation Counts Rankings
Rankings
8,370
5
1
Ranking Based On Selection: 83
Georgios Defteaios
Open University of Cyprus
Latsia, Cyprus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,668
18,341
0.329
environmental management
* Total Citation Counts Rankings
Rankings
8,419
56
1
Ranking Based On Selection: 84
Mohammad Malakootian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,527
51,313
0.924
* Total Citation Counts Rankings
Rankings
8,425
4,009
71
Ranking Based On Selection: 85
Jonathan Overpeck
University of Michigan
Ann Arbor, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,505
15,195
0.274
climate
vegetation
drought
adaptation
environmental education and engagement
* Total Citation Counts Rankings
Rankings
8,632
334
32
Ranking Based On Selection: 86
Zhiguo Yuan
University of Queensland
St Lucia, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,672
33,026
0.604
Urban Water Management
Environmental Biotechnology
* Total Citation Counts Rankings
Rankings
8,748
4,175
11
Ranking Based On Selection: 87
David Rind
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,187
10,807
0.199
Climate Change
Atmospheric Dynamics
Stratosphere
Paleoclimate
Hydrology
* Total Citation Counts Rankings
Rankings
8,985
97
1
Ranking Based On Selection: 88
Dinesh Mohan
Jawaharlal Nehru University
New Delhi, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,293
27,088
0.508
Environmental Chemistry
sustainable adsorbents
Biochar
Biochar use in water
soil & climate change mitigation
* Total Citation Counts Rankings
Rankings
9,200
256
5
Ranking Based On Selection: 89
Lena Q Ma
Zhejiang University
Hangzhou, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,450
24,576
0.469
Envrionmental Biogeochemistry
* Total Citation Counts Rankings
Rankings
9,317
262
2
Ranking Based On Selection: 90
Xie Quan
Dalian University of Technology
Dalian, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,036
31,834
0.612
environmental science
chemical engineering
water treatment
catalysis
* Total Citation Counts Rankings
Rankings
9,391
67
2
Ranking Based On Selection: 91
Mehdi Ahmadi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,771
49,227
0.951
Industrial Wastewater Treatment
Water Quality
Environmental Monitoring
* Total Citation Counts Rankings
Rankings
9,487
826
66
Ranking Based On Selection: 92
Frank Kelly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,408
23,207
0.451
air pollution and health
* Total Citation Counts Rankings
Rankings
9,602
4,574
39
Ranking Based On Selection: 93
Jonathan Patz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,028
20,644
0.405
Environmental Public Health
Climate Change
Built Environment
Land use change
* Total Citation Counts Rankings
Rankings
9,703
4,622
31
Ranking Based On Selection: 94
Lance Gunderson
Emory University
Atlanta, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,755
16,533
0.326
Environmental sciences
policy
ecology
* Total Citation Counts Rankings
Rankings
9,794
392
2
Ranking Based On Selection: 95
Jan C Minx
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,480
34,759
0.689
climate change mitigation
carbon dioxide removal
evidence synthesis
data science for evidence synthesis
* Total Citation Counts Rankings
Rankings
9,799
175
10
Ranking Based On Selection: 96
Nino Kuenzli
Universität Basel
Basel, Switzerland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,464
20,348
0.403
Air pollution & health
environmental epidemiology
public health
epidemiology
air pollution
* Total Citation Counts Rankings
Rankings
9,803
4,662
323
Ranking Based On Selection: 97
Scot T Martin
Harvard University
Cambridge, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,454
17,142
0.340
* Total Citation Counts Rankings
Rankings
9,910
106
11
Ranking Based On Selection: 98
Deliang Chen
University of Gothenburg
Göteborg, Sweden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,118
30,898
0.617
regional climate change
downscaling
Third Pole
water balance
earth system science
* Total Citation Counts Rankings
Rankings
9,925
107
5
Ranking Based On Selection: 99
S Sörlin
Royal Institute of Technology
Stockholm, Sweden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,073
28,546
0.570
Environmental History
History of Science
Research Policy
Environmental Humanities
Climate Policy
* Total Citation Counts Rankings
Rankings
10,025
4,774
1
Ranking Based On Selection: 100
John G Watson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,749
14,206
0.286
Environmental Science
Air Pollution
Aerosol