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" (873,937 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
Iseult Lynch
Nanosafety
environmental fate & behaviour
biomolecules
microplastics
water pollution
Metrics
H-Index
i10 Index
Citation
82
276
41,149
* Rankings
Ranking Based On Selection :3
G Neil Thomas
Cardiovascular disease
diabetes
obesity
air pollution
epidemiology
Metrics
H-Index
i10 Index
Citation
77
314
33,690
* Rankings
Ranking Based On Selection :6
Thomas AM Pugh
Carbon cycle
terrestrial biosphere
climate change
atmospheric chemistry
Metrics
H-Index
i10 Index
Citation
53
90
15,449
* Rankings
Ranking Based On Selection :12
Niheer Dasandi
international development
international relations
human rights
foreign policy
climate change and health
Metrics
H-Index
i10 Index
Citation
22
34
9,238
* Rankings
Ranking Based On Selection :14
Rita Floyd née Taureck
security studies
environmental security
International Ethics
International Relations Theory
Metrics
H-Index
i10 Index
Citation
20
27
3,595
David Jaroszweski
Climate change risk and adaptation
sustainability
infrastructure
transportation
Metrics
H-Index
i10 Index
Citation
11
13
870
Rankings
Ranking Based On Selection: 1
Jon G Ayres
Metrics
H-Index
i10 Index
Citation Counts
88
262
27,099
Rankings
Ranking Based On Selection: 2
Iseult Lynch
Metrics
H-Index
i10 Index
Citation Counts
82
276
41,149
Nanosafety
environmental fate & behaviour
biomolecules
microplastics
water pollution
Rankings
Ranking Based On Selection: 3
G Neil Thomas
Metrics
H-Index
i10 Index
Citation Counts
77
314
33,690
Cardiovascular disease
diabetes
obesity
air pollution
epidemiology
Rankings
Ranking Based On Selection: 4
Ian J Fairchild
Metrics
H-Index
i10 Index
Citation Counts
71
150
19,266
Carbonate rocks
climate change
glaciation
karst
geochemistry
Rankings
Ranking Based On Selection: 5
Laura Green
Metrics
H-Index
i10 Index
Citation Counts
70
221
19,287
Rankings
Ranking Based On Selection: 6
Thomas AM Pugh
Metrics
H-Index
i10 Index
Citation Counts
53
90
15,449
Carbon cycle
terrestrial biosphere
climate change
atmospheric chemistry
Rankings
Ranking Based On Selection: 7
Thornes JE
Metrics
H-Index
i10 Index
Citation Counts
40
95
5,911
Rankings
Ranking Based On Selection: 8
Juana Maria Delgado-Saborit
Metrics
H-Index
i10 Index
Citation Counts
35
61
5,711
Rankings
Ranking Based On Selection: 9
Robert W Peters
Metrics
H-Index
i10 Index
Citation Counts
29
74
4,412
Rankings
Ranking Based On Selection: 10
Taghi Miri
Metrics
H-Index
i10 Index
Citation Counts
25
42
2,005
Rankings
Ranking Based On Selection: 11
Fiona Nunan
Metrics
H-Index
i10 Index
Citation Counts
25
38
2,180
Rankings
Ranking Based On Selection: 12
Niheer Dasandi
Metrics
H-Index
i10 Index
Citation Counts
22
34
9,238
international development
international relations
human rights
foreign policy
climate change and health
Rankings
Ranking Based On Selection: 13
Peter Hopcroft
Metrics
H-Index
i10 Index
Citation Counts
22
34
2,424
Rankings
Ranking Based On Selection: 14
Rita Floyd née Taureck
Metrics
H-Index
i10 Index
Citation Counts
20
27
3,595
security studies
environmental security
International Ethics
International Relations Theory
Rankings
Ranking Based On Selection: 15
Suzanne Bartington
Metrics
H-Index
i10 Index
Citation Counts
18
29
1,430
Rankings
Ranking Based On Selection: 16
Todd Mize
Metrics
H-Index
i10 Index
Citation Counts
18
18
1,776
Rankings
Ranking Based On Selection: 17
Steven Emery
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,225
Rankings
Ranking Based On Selection: 18
David Jaroszweski
Metrics
H-Index
i10 Index
Citation Counts
11
13
870
Climate change risk and adaptation
sustainability
infrastructure
transportation
Rankings
Ranking Based On Selection: 19
Meredith Gartin
Metrics
H-Index
i10 Index
Citation Counts
10
12
723
Global Health
Climate Change
Globalization
Urban Environmental Health
Rankings
Ranking Based On Selection: 20
Anuradha Goswami
Metrics
H-Index
i10 Index
Citation Counts
5
4
74
Rankings
Ranking Based On Selection: 21
Levent Onat
Metrics
H-Index
i10 Index
Citation Counts
1
1
130