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
Toby Gardner
Sustainability Science
Biodiversity
science-policy interface
transdisciplinary research
Metrics
H-Index
i10 Index
Citation
83
135
30,039
* Rankings
Ranking Based On Selection: 2
Javier Godar
Social-ecological systems
GIS
landscape ecology
Amazon
remote-sensing
Metrics
H-Index
i10 Index
Citation
25
29
4,284
* Rankings
Ranking Based On Selection: 5
Albert Salamanca
Climate change adaptation
sustainable livelihood analysis
environmental transition
Southeast
Metrics
H-Index
i10 Index
Citation
20
32
2,144
* Rankings
Ranking Based On Selection: 6
Adis Dzebo
Political science
Climate governance
adaptation
non-state actors
Metrics
H-Index
i10 Index
Citation
18
33
1,234
* Rankings
Ranking Based On Selection: 7
Olle Olsson
Energy systems
industrial decarbonization
climate change mitigation
Metrics
H-Index
i10 Index
Citation
18
29
1,178
* Rankings
Ranking Based On Selection: 8
Marcus Carson
sociology
sustainable development
policy paradigm
resilience
climate change
Metrics
H-Index
i10 Index
Citation
17
26
1,354
* Rankings
Ranking Based On Selection: 9
Gregor Vulturius
Sustainable Finance
Climate services
Science communication
EU Policy
Industrial Transition
Metrics
H-Index
i10 Index
Citation
15
19
1,021
* Rankings
Ranking Based On Selection: 10
Heidi Tuhkanen
urban environmental governance
Metrics
H-Index
i10 Index
Citation
13
15
705

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
Kevin M. Adams
Global Climate Politics
Climate Change Adaptation
Political Economy
Metrics
H-Index
i10 Index
Citation
12
13
457
* Rankings
Ranking Based On Selection: 12
Rajesh Daniel
Mekong region
resource governance
livelihoods
sustainability
communications
Metrics
H-Index
i10 Index
Citation
12
14
861
* Rankings
Ranking Based On Selection: 13
Chayanis Krittasudthacheewa
Water resources
Hydrology
Climate Change
Development
ANN
Metrics
H-Index
i10 Index
Citation
8
7
319
* Rankings
Ranking Based On Selection: 14
Chusit Apirumanekul
Flood modelling
flood management
water resource management
climate change
Metrics
H-Index
i10 Index
Citation
7
7
877
Rankings
Ranking Based On Selection: 1
Toby Gardner
Metrics
H-Index
i10 Index
Citation Counts
83
135
30,039
Sustainability Science
Biodiversity
science-policy interface
transdisciplinary research
Rankings
Ranking Based On Selection: 2
Javier Godar
Metrics
H-Index
i10 Index
Citation Counts
25
29
4,284
Social-ecological systems
GIS
landscape ecology
Amazon
remote-sensing
Rankings
Ranking Based On Selection: 3
Clément Suavet
Metrics
H-Index
i10 Index
Citation Counts
23
24
2,569
Rankings
Ranking Based On Selection: 4
Rasmus Klí¸cker Larsen
Metrics
H-Index
i10 Index
Citation Counts
22
42
2,309
Rankings
Ranking Based On Selection: 5
Albert Salamanca
Metrics
H-Index
i10 Index
Citation Counts
20
32
2,144
Climate change adaptation
sustainable livelihood analysis
environmental transition
Southeast
Rankings
Ranking Based On Selection: 6
Adis Dzebo
Metrics
H-Index
i10 Index
Citation Counts
18
33
1,234
Political science
Climate governance
adaptation
non-state actors
Rankings
Ranking Based On Selection: 7
Olle Olsson
Metrics
H-Index
i10 Index
Citation Counts
18
29
1,178
Energy systems
industrial decarbonization
climate change mitigation
Rankings
Ranking Based On Selection: 8
Marcus Carson
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,354
sociology
sustainable development
policy paradigm
resilience
climate change
Rankings
Ranking Based On Selection: 9
Gregor Vulturius
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,021
Sustainable Finance
Climate services
Science communication
EU Policy
Industrial Transition
Rankings
Ranking Based On Selection: 10
Heidi Tuhkanen
Metrics
H-Index
i10 Index
Citation Counts
13
15
705
urban environmental governance

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
Kevin M. Adams
Metrics
H-Index
i10 Index
Citation Counts
12
13
457
Global Climate Politics
Climate Change Adaptation
Political Economy
Rankings
Ranking Based On Selection: 12
Rajesh Daniel
Metrics
H-Index
i10 Index
Citation Counts
12
14
861
Mekong region
resource governance
livelihoods
sustainability
communications
Rankings
Ranking Based On Selection: 13
Chayanis Krittasudthacheewa
Metrics
H-Index
i10 Index
Citation Counts
8
7
319
Water resources
Hydrology
Climate Change
Development
ANN
Rankings
Ranking Based On Selection: 14
Chusit Apirumanekul
Metrics
H-Index
i10 Index
Citation Counts
7
7
877
Flood modelling
flood management
water resource management
climate change
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