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
Piers Forster
climate
climate change
climate modeling
atmospheric sciences
geophysics
Metrics
H-Index
i10 Index
Citation
105
265
104,631
* Rankings
Ranking Based On Selection: 2
James D Ford
Climate change
vulnerability & adaptation
Arctic
Indigenous peoples
human geography
Metrics
H-Index
i10 Index
Citation
98
266
33,588
* Rankings
Ranking Based On Selection: 3
Dominick Spracklen
Biosphere
Aerosol
Deforestation
Air pollution
Land use change
Metrics
H-Index
i10 Index
Citation
82
169
23,806
* Rankings
Ranking Based On Selection: 4
Andrew Dougill
climate change
dryland degradation
participatory adaptive management
Metrics
H-Index
i10 Index
Citation
72
183
21,294
* Rankings
Ranking Based On Selection: 8
Sandip Dhomse
stratosphere
solar-climate interaction
stratospheric aerosol
climate change
Metrics
H-Index
i10 Index
Citation
49
102
7,877
* Rankings
Ranking Based On Selection: 9
Wolfgang Buermann
Satellite Earth observations
global carbon cycle
biodiversity
Metrics
H-Index
i10 Index
Citation
49
74
11,900
* Rankings
Ranking Based On Selection: 10
Martin Dallimer
Environmental Change
Conservation
Ecosystem Services
Urban ecosystems
Human-nature interactions
Metrics
H-Index
i10 Index
Citation
45
101
7,768

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* Rankings
Ranking Based On Selection: 13
Michael N Routledge
Environmental Toxicology
Mycotoxins
Biomarkers
Particulates
Metrics
H-Index
i10 Index
Citation
42
92
5,529
* Rankings
Ranking Based On Selection: 14
Gordon Mitchell
Natural resource management
environmental appraisal
water
air quality
development
Metrics
H-Index
i10 Index
Citation
42
85
6,761
* Rankings
Ranking Based On Selection: 15
Monica Di Gregorio
Environmental Politics and Policy
Forest Governance
Collective action
REDD+
Metrics
H-Index
i10 Index
Citation
34
61
4,768
* Rankings
Ranking Based On Selection: 16
Mark Trigg
Hydrology
Hydrodynamics
Rivers and Floodplains
Flood Risk
Global Datasets
Metrics
H-Index
i10 Index
Citation
32
48
4,146
* Rankings
Ranking Based On Selection: 17
Susannah Sallu
Rural livelihoods
Climate change
Biodiversity Conservation
Natural resource management
Development
Metrics
H-Index
i10 Index
Citation
31
52
3,674
* Rankings
Ranking Based On Selection: 18
Milena Buchs
climate change and inequality
sustainable welfare and eco-social policies
just transition
post-growth
wellbeing economics
Metrics
H-Index
i10 Index
Citation
31
50
3,687
* Rankings
Ranking Based On Selection: 19
Miller Alonso Camargo Valero
water and sanitation in developing countries
resource recovery from waste
algal bioengineering
Metrics
H-Index
i10 Index
Citation
30
65
3,259
* Rankings
Ranking Based On Selection: 21
Marcelo Galdos
Farming systems
Climate change
Soil carbon
Process-based models
Greenhouse gas emissions
Metrics
H-Index
i10 Index
Citation
29
40
3,474
* Rankings
Ranking Based On Selection: 23
Sally Russell
pro-environmental behavior
organizational change
organizational behavior
environmental management
climate change
Metrics
H-Index
i10 Index
Citation
26
37
4,630
* Rankings
Ranking Based On Selection: 24
Anna Mdee
Water
governance
Tanzania
sustainable agriculture
agroecology
Metrics
H-Index
i10 Index
Citation
24
38
1,715
* Rankings
Ranking Based On Selection: 26
James Van Alstine
Environment and Development
Environmental Policy and Governance
Resource and Climate Politics
Metrics
H-Index
i10 Index
Citation
21
29
1,884
* Rankings
Ranking Based On Selection: 27
Neil Coles
Water Law
NRM
Nature Based Solutions
Agricultural Water Management
Climate Resilience
Metrics
H-Index
i10 Index
Citation
20
31
1,830
* Rankings
Ranking Based On Selection: 29
Rory Padfield
sustainable development
postcolonial
sustainability & business
communication
Metrics
H-Index
i10 Index
Citation
19
26
2,178
* Rankings
Ranking Based On Selection: 30
Devlina Das Pramanik
Environmental Engineering
Environmental Toxicology
Aquaculture
Metrics
H-Index
i10 Index
Citation
19
29
1,796
* Rankings
Ranking Based On Selection: 31
Vera Trappmann
work and employment
precarity
trade unions
restructuring
climate change
Metrics
H-Index
i10 Index
Citation
17
28
1,653
* Rankings
Ranking Based On Selection: 32
Christopher Lyon
resilience
adaptation
transformation
rural
climate change
Metrics
H-Index
i10 Index
Citation
16
16
2,403
Kanhu Charan Pattnayak
Indian Monsoon
Climate Change
Climate Modelling
Regional Climate Modelling
Amazon Climate
Metrics
H-Index
i10 Index
Citation
13
17
972
Franja Prosenc
Environmental Science
Microplastics
Agriculture
Circular Economy
Metrics
H-Index
i10 Index
Citation
9
8
382
Susanne Lorenz
Climate Change Adaptation
Communicating and Visualising Climate Information and Uncertainties
Local Government
Metrics
H-Index
i10 Index
Citation
9
9
378
Otokiti Kolade
Environment and Development
Urban Planning
Geographic Information Systems and Remote Sensing
Metrics
H-Index
i10 Index
Citation
6
3
86
Olweny Samuel
Wastes Management
Water Resource and Quality
and Environmental Science/Engineering
Metrics
H-Index
i10 Index
Citation
1
1
14
Rankings
Ranking Based On Selection: 1
Piers Forster
Metrics
H-Index
i10 Index
Citation Counts
105
265
104,631
climate
climate change
climate modeling
atmospheric sciences
geophysics
Rankings
Ranking Based On Selection: 2
James D Ford
Metrics
H-Index
i10 Index
Citation Counts
98
266
33,588
Climate change
vulnerability & adaptation
Arctic
Indigenous peoples
human geography
Rankings
Ranking Based On Selection: 3
Dominick Spracklen
Metrics
H-Index
i10 Index
Citation Counts
82
169
23,806
Biosphere
Aerosol
Deforestation
Air pollution
Land use change
Rankings
Ranking Based On Selection: 4
Andrew Dougill
Metrics
H-Index
i10 Index
Citation Counts
72
183
21,294
climate change
dryland degradation
participatory adaptive management
Rankings
Ranking Based On Selection: 5
Andy Challinor
Metrics
H-Index
i10 Index
Citation Counts
72
143
30,152
Rankings
Ranking Based On Selection: 6
Jon Lovett
Metrics
H-Index
i10 Index
Citation Counts
70
169
21,682
Rankings
Ranking Based On Selection: 7
Suraje Dessai
Metrics
H-Index
i10 Index
Citation Counts
61
118
19,830
Rankings
Ranking Based On Selection: 8
Sandip Dhomse
Metrics
H-Index
i10 Index
Citation Counts
49
102
7,877
stratosphere
solar-climate interaction
stratospheric aerosol
climate change
Rankings
Ranking Based On Selection: 9
Wolfgang Buermann
Metrics
H-Index
i10 Index
Citation Counts
49
74
11,900
Satellite Earth observations
global carbon cycle
biodiversity
Rankings
Ranking Based On Selection: 10
Martin Dallimer
Metrics
H-Index
i10 Index
Citation Counts
45
101
7,768
Environmental Change
Conservation
Ecosystem Services
Urban ecosystems
Human-nature interactions

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
Ian Burke
Metrics
H-Index
i10 Index
Citation Counts
45
83
5,524
Rankings
Ranking Based On Selection: 12
Christopher J Smith|Chris Smith
Metrics
H-Index
i10 Index
Citation Counts
43
79
10,285
Rankings
Ranking Based On Selection: 13
Michael N Routledge
Metrics
H-Index
i10 Index
Citation Counts
42
92
5,529
Rankings
Ranking Based On Selection: 14
Gordon Mitchell
Metrics
H-Index
i10 Index
Citation Counts
42
85
6,761
Natural resource management
environmental appraisal
water
air quality
development
Rankings
Ranking Based On Selection: 15
Monica Di Gregorio
Metrics
H-Index
i10 Index
Citation Counts
34
61
4,768
Environmental Politics and Policy
Forest Governance
Collective action
REDD+
Rankings
Ranking Based On Selection: 16
Mark Trigg
Metrics
H-Index
i10 Index
Citation Counts
32
48
4,146
Hydrology
Hydrodynamics
Rivers and Floodplains
Flood Risk
Global Datasets
Rankings
Ranking Based On Selection: 17
Susannah Sallu
Metrics
H-Index
i10 Index
Citation Counts
31
52
3,674
Rural livelihoods
Climate change
Biodiversity Conservation
Natural resource management
Development
Rankings
Ranking Based On Selection: 18
Milena Buchs
Metrics
H-Index
i10 Index
Citation Counts
31
50
3,687
climate change and inequality
sustainable welfare and eco-social policies
just transition
post-growth
wellbeing economics
Rankings
Ranking Based On Selection: 19
Miller Alonso Camargo Valero
Metrics
H-Index
i10 Index
Citation Counts
30
65
3,259
water and sanitation in developing countries
resource recovery from waste
algal bioengineering
Rankings
Ranking Based On Selection: 20
Karl Ropkins
Metrics
H-Index
i10 Index
Citation Counts
30
49
4,582
Rankings
Ranking Based On Selection: 21
Marcelo Galdos
Metrics
H-Index
i10 Index
Citation Counts
29
40
3,474
Farming systems
Climate change
Soil carbon
Process-based models
Greenhouse gas emissions
Rankings
Ranking Based On Selection: 22
Louise Fletcher
Metrics
H-Index
i10 Index
Citation Counts
28
44
3,513
Rankings
Ranking Based On Selection: 23
Sally Russell
Metrics
H-Index
i10 Index
Citation Counts
26
37
4,630
pro-environmental behavior
organizational change
organizational behavior
environmental management
climate change
Rankings
Ranking Based On Selection: 24
Anna Mdee
Metrics
H-Index
i10 Index
Citation Counts
24
38
1,715
Water
governance
Tanzania
sustainable agriculture
agroecology
Rankings
Ranking Based On Selection: 25
Stavros Afionis
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,457
Rankings
Ranking Based On Selection: 26
James Van Alstine
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,884
Environment and Development
Environmental Policy and Governance
Resource and Climate Politics
Rankings
Ranking Based On Selection: 27
Neil Coles
Metrics
H-Index
i10 Index
Citation Counts
20
31
1,830
Water Law
NRM
Nature Based Solutions
Agricultural Water Management
Climate Resilience
Rankings
Ranking Based On Selection: 28
Joanes O Atela
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,768
Rankings
Ranking Based On Selection: 29
Rory Padfield
Metrics
H-Index
i10 Index
Citation Counts
19
26
2,178
sustainable development
postcolonial
sustainability & business
communication
Rankings
Ranking Based On Selection: 30
Devlina Das Pramanik
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,796
Environmental Engineering
Environmental Toxicology
Aquaculture
Rankings
Ranking Based On Selection: 31
Vera Trappmann
Metrics
H-Index
i10 Index
Citation Counts
17
28
1,653
work and employment
precarity
trade unions
restructuring
climate change
Rankings
Ranking Based On Selection: 32
Christopher Lyon
Metrics
H-Index
i10 Index
Citation Counts
16
16
2,403
Rankings
Ranking Based On Selection: 33
Kanhu Charan Pattnayak
Metrics
H-Index
i10 Index
Citation Counts
13
17
972
Indian Monsoon
Climate Change
Climate Modelling
Regional Climate Modelling
Amazon Climate
Rankings
Ranking Based On Selection: 34
Franja Prosenc
Metrics
H-Index
i10 Index
Citation Counts
9
8
382
Environmental Science
Microplastics
Agriculture
Circular Economy
Rankings
Ranking Based On Selection: 35
Maryam Asachi
Metrics
H-Index
i10 Index
Citation Counts
9
8
354
Rankings
Ranking Based On Selection: 36
Susanne Lorenz
Metrics
H-Index
i10 Index
Citation Counts
9
9
378
Climate Change Adaptation
Communicating and Visualising Climate Information and Uncertainties
Local Government
Rankings
Ranking Based On Selection: 37
Otokiti Kolade
Metrics
H-Index
i10 Index
Citation Counts
6
3
86
Environment and Development
Urban Planning
Geographic Information Systems and Remote Sensing
Rankings
Ranking Based On Selection: 38
Andrea Lorena Garduño Jiménez
Metrics
H-Index
i10 Index
Citation Counts
5
2
153
Rankings
Ranking Based On Selection: 39
Stephanie Bond
Metrics
H-Index
i10 Index
Citation Counts
4
2
69
Rankings
Ranking Based On Selection: 40
Aniket Ravindra Ingole
Metrics
H-Index
i10 Index
Citation Counts
2
1
13
Rankings
Ranking Based On Selection: 41
Olweny Samuel
Metrics
H-Index
i10 Index
Citation Counts
1
1
14
Wastes Management
Water Resource and Quality
and Environmental Science/Engineering