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" (888,752 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
Akio Kitoh
Metrics
H-Index
i10 Index
Citation Counts
80
200
38,041
Rankings
Ranking Based On Selection: 2
Masato Sugi
Metrics
H-Index
i10 Index
Citation Counts
41
61
12,296
Rankings
Ranking Based On Selection: 3
Tsuyoshi Koshiro
Metrics
H-Index
i10 Index
Citation Counts
22
26
4,046
climate change
cloud feedback
low cloud cover
climate modeling
Rankings
Ranking Based On Selection: 4
Ryo Fujita
Metrics
H-Index
i10 Index
Citation Counts
7
7
224
methane
isotopes
greenhouse gases
carbon cycle
climate change