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" (870,053 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: 2
Richard Owen
Science and Technology Studies
Responsible Innovation
Innovation
Environmental Sciences
Metrics
H-Index
i10 Index
Citation
47
76
16,305
Guy Howard
Water
sanitation
environmental health
climate change
resilience
Metrics
H-Index
i10 Index
Citation
38
71
7,926
Rachel James
climate change
African climate
climate models
climate services
climate policy
Metrics
H-Index
i10 Index
Citation
29
37
4,407
Peter Watson
atmospheric physics
climate modelling
climate change
extreme weather
Metrics
H-Index
i10 Index
Citation
15
19
847
Sarah Shannon
Climate Change
glaciers
sea level rise
water resources
modelling
Metrics
H-Index
i10 Index
Citation
15
15
1,649
Hong Chin Ng
Marine geochemistry
climate change
nutrient cycling
paleoceanography
isotopes
Metrics
H-Index
i10 Index
Citation
12
12
580
Caroline Bird
environment
low carbon transitions
energy policy
community energy
healthy sustainable cities
Metrics
H-Index
i10 Index
Citation
9
7
303

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Dmitry V. Zhdanov
quantum control
many-body physics
non-linear optics
quantum information
quantum chemistry
Metrics
H-Index
i10 Index
Citation
9
9
342
Maria Paula Escobar
environment & society
environmental governance
flood risk management
human-animal relations
Metrics
H-Index
i10 Index
Citation
8
8
426
Steve Murray
global water resources
climate change
runoff
dynamic global vegetation models
LPJ
Metrics
H-Index
i10 Index
Citation
8
8
696
Rankings
Ranking Based On Selection: 1
Tony Payne
Metrics
H-Index
i10 Index
Citation Counts
72
143
29,853
Rankings
Ranking Based On Selection: 2
Richard Owen
Metrics
H-Index
i10 Index
Citation Counts
47
76
16,305
Science and Technology Studies
Responsible Innovation
Innovation
Environmental Sciences
Rankings
Ranking Based On Selection: 3
Dann Mitchell
Metrics
H-Index
i10 Index
Citation Counts
46
105
10,722
Rankings
Ranking Based On Selection: 4
Guy Howard
Metrics
H-Index
i10 Index
Citation Counts
38
71
7,926
Water
sanitation
environmental health
climate change
resilience
Rankings
Ranking Based On Selection: 5
Rachel James
Metrics
H-Index
i10 Index
Citation Counts
29
37
4,407
climate change
African climate
climate models
climate services
climate policy
Rankings
Ranking Based On Selection: 6
Richard J Hall
Metrics
H-Index
i10 Index
Citation Counts
19
23
2,095
Rankings
Ranking Based On Selection: 7
Peter Watson
Metrics
H-Index
i10 Index
Citation Counts
15
19
847
atmospheric physics
climate modelling
climate change
extreme weather
Rankings
Ranking Based On Selection: 8
Sarah Shannon
Metrics
H-Index
i10 Index
Citation Counts
15
15
1,649
Climate Change
glaciers
sea level rise
water resources
modelling
Rankings
Ranking Based On Selection: 9
Hong Chin Ng
Metrics
H-Index
i10 Index
Citation Counts
12
12
580
Marine geochemistry
climate change
nutrient cycling
paleoceanography
isotopes
Rankings
Ranking Based On Selection: 10
Caroline Bird
Metrics
H-Index
i10 Index
Citation Counts
9
7
303
environment
low carbon transitions
energy policy
community energy
healthy sustainable cities

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
Dmitry V. Zhdanov
Metrics
H-Index
i10 Index
Citation Counts
9
9
342
quantum control
many-body physics
non-linear optics
quantum information
quantum chemistry
Rankings
Ranking Based On Selection: 12
Maria Paula Escobar
Metrics
H-Index
i10 Index
Citation Counts
8
8
426
environment & society
environmental governance
flood risk management
human-animal relations
Rankings
Ranking Based On Selection: 13
Steve Murray
Metrics
H-Index
i10 Index
Citation Counts
8
8
696
global water resources
climate change
runoff
dynamic global vegetation models
LPJ
Rankings
Ranking Based On Selection: 14
Jiang-Han Tian
Metrics
H-Index
i10 Index
Citation Counts
5
5
225