Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (870,057 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Byong Hun Jeon
BioEnergy
Environmental Engineering
Resource Recovery
Metrics
H-Index
i10 Index
Citation
87
445
28,458
* Rankings
Ranking Based On Selection: 2
Hyo Bang Moon
Environmental Chemistry
Environmental Toxicology
Metrics
H-Index
i10 Index
Citation
63
185
13,669
* Rankings
Ranking Based On Selection: 4
Kumar Vikrant
Environmental Research
Functional Materials
Air Quality Management
Metrics
H-Index
i10 Index
Citation
40
68
6,167
* Rankings
Ranking Based On Selection: 5
Tea-Woong Kim
hydrology
climate change
drought
flood
water resources
Metrics
H-Index
i10 Index
Citation
38
134
5,943
* Rankings
Ranking Based On Selection: 6
Sunggyu Lee
Environmental Sciences
Marine Chemistry
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
34
47
2,879
* Rankings
Ranking Based On Selection: 7
Eun Ji Won
environmental toxicology
physiology
stable isotope ecology
Metrics
H-Index
i10 Index
Citation
34
62
4,638
* Rankings
Ranking Based On Selection: 8
Ramesh Kumar
Bioenergy
Valorization of lignocellulosic biomass
Resource recovery
Wastewater treatment
Metrics
H-Index
i10 Index
Citation
31
53
2,770
* Rankings
Ranking Based On Selection: 9
Indra Neel Pulidindi
Energy sources
Environmental science
Materials science
Catalysis
Biofuels
Metrics
H-Index
i10 Index
Citation
26
44
1,764
* Rankings
Ranking Based On Selection: 10
Liu Botao
Environmental engineering
MOF synthesis
VOC removal
Metrics
H-Index
i10 Index
Citation
15
16
1,489

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 11
Si Hyun Do
Environmental Engineering
Water Chemistry
Water Treatment
Water-Energy Nexus
Coprecipitation
Metrics
H-Index
i10 Index
Citation
11
13
860
* Rankings
Ranking Based On Selection: 12
Chuljin Park
Stochastic Simulation
Simulation Optimization
Environmental Management
Metrics
H-Index
i10 Index
Citation
10
10
323
Md Monjurul Islam
environmental engineering
wastewater treatment
biodegradable composite
polymer
soil treatment
Metrics
H-Index
i10 Index
Citation
7
5
249
Jae-Ho Shim
Alkali-activated materials
Geopolymer
Layered double hydroxide
Chlor-alkali
Metrics
H-Index
i10 Index
Citation
7
4
157
Dongwook Kim
Hydrology
Floods
Tropical Cyclones
Climate Change
Machine Learning
Metrics
H-Index
i10 Index
Citation
5
2
92
Nikita Yadav
Environmental engineering
Bioremediation
Emerging Contaminants
Plant molecular biology
Toxicity
Metrics
H-Index
i10 Index
Citation
4
4
71
Rankings
Ranking Based On Selection: 1
Byong Hun Jeon
Metrics
H-Index
i10 Index
Citation Counts
87
445
28,458
Rankings
Ranking Based On Selection: 2
Hyo Bang Moon
Metrics
H-Index
i10 Index
Citation Counts
63
185
13,669
Rankings
Ranking Based On Selection: 3
Young Mo Kim
Metrics
H-Index
i10 Index
Citation Counts
41
81
5,419
Rankings
Ranking Based On Selection: 4
Kumar Vikrant
Metrics
H-Index
i10 Index
Citation Counts
40
68
6,167
Environmental Research
Functional Materials
Air Quality Management
Rankings
Ranking Based On Selection: 5
Tea-Woong Kim
Metrics
H-Index
i10 Index
Citation Counts
38
134
5,943
Rankings
Ranking Based On Selection: 6
Sunggyu Lee
Metrics
H-Index
i10 Index
Citation Counts
34
47
2,879
Environmental Sciences
Marine Chemistry
Environmental Chemistry
Rankings
Ranking Based On Selection: 7
Eun Ji Won
Metrics
H-Index
i10 Index
Citation Counts
34
62
4,638
Rankings
Ranking Based On Selection: 8
Ramesh Kumar
Metrics
H-Index
i10 Index
Citation Counts
31
53
2,770
Bioenergy
Valorization of lignocellulosic biomass
Resource recovery
Wastewater treatment
Rankings
Ranking Based On Selection: 9
Indra Neel Pulidindi
Metrics
H-Index
i10 Index
Citation Counts
26
44
1,764
Energy sources
Environmental science
Materials science
Catalysis
Biofuels
Rankings
Ranking Based On Selection: 10
Liu Botao
Metrics
H-Index
i10 Index
Citation Counts
15
16
1,489

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Si Hyun Do
Metrics
H-Index
i10 Index
Citation Counts
11
13
860
Environmental Engineering
Water Chemistry
Water Treatment
Water-Energy Nexus
Coprecipitation
Rankings
Ranking Based On Selection: 12
Chuljin Park
Metrics
H-Index
i10 Index
Citation Counts
10
10
323
Stochastic Simulation
Simulation Optimization
Environmental Management
Rankings
Ranking Based On Selection: 13
Md Monjurul Islam
Metrics
H-Index
i10 Index
Citation Counts
7
5
249
environmental engineering
wastewater treatment
biodegradable composite
polymer
soil treatment
Rankings
Ranking Based On Selection: 14
Jae-Ho Shim
Metrics
H-Index
i10 Index
Citation Counts
7
4
157
Alkali-activated materials
Geopolymer
Layered double hydroxide
Chlor-alkali
Rankings
Ranking Based On Selection: 15
Hansol Kim (김한솔)
Metrics
H-Index
i10 Index
Citation Counts
5
4
149
Rankings
Ranking Based On Selection: 16
Dongwook Kim
Metrics
H-Index
i10 Index
Citation Counts
5
2
92
Hydrology
Floods
Tropical Cyclones
Climate Change
Machine Learning
Rankings
Ranking Based On Selection: 17
Nikita Yadav
Metrics
H-Index
i10 Index
Citation Counts
4
4
71
Environmental engineering
Bioremediation
Emerging Contaminants
Plant molecular biology
Toxicity