World Scientist and University Rankings 2025
Norway Engineering & Technology 88 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 30, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Waste/wastewater treatment
cellulose/algae biofuels
Environmental Remediation. Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
95
354
29,096
* Total H IndexRankings
Ranking Based On Selection: 2
environment
climate
energy
Metrics
H-Index
i10 Index
Citation Counts
93
221
34,596
* Total H IndexRankings
Ranking Based On Selection: 3
Climate change
Metrics
H-Index
i10 Index
Citation Counts
74
136
45,392
* Total H IndexRankings
Ranking Based On Selection: 4
Climate change impact
past climate changes
Metrics
H-Index
i10 Index
Citation Counts
69
158
13,884
* Total H IndexRankings
Ranking Based On Selection: 5
climate and environmental sciences
Metrics
H-Index
i10 Index
Citation Counts
64
116
17,497
* Total H IndexRankings
Ranking Based On Selection: 6
climate extremes
climate change
climate models
climate variability
aerosols
Metrics
H-Index
i10 Index
Citation Counts
54
91
18,387
* Total H IndexRankings
Ranking Based On Selection: 7
Environmental Toxicology
Ecotoxicology
Environmental Physiology
Metrics
H-Index
i10 Index
Citation Counts
54
188
10,073
* Total H IndexRankings
Ranking Based On Selection: 8
Non-market Valuation
Benefit transfer
Valuation of Ecosystem Services & Cultural Heritage & Public Health
Energy Externalities
Metrics
H-Index
i10 Index
Citation Counts
51
119
10,339
* Total H IndexRankings
Ranking Based On Selection: 9
climate change
vulnerability
adaptation
Metrics
H-Index
i10 Index
Citation Counts
50
89
19,714
* Total H IndexRankings
Ranking Based On Selection: 10
Environmental radioactivity
radioecology
environmental chemistry
research ethics
societal impacts of ionising radiation
Metrics
H-Index
i10 Index
Citation Counts
45
113
6,584
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* Total H IndexRankings
Ranking Based On Selection: 11
Environmental geochemistry
environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
43
72
6,553
* Total H IndexRankings
Ranking Based On Selection: 12
Plant biology
Ecology
Biodiversity
Climate change impact assessments
Taxonomy
Metrics
H-Index
i10 Index
Citation Counts
41
86
8,024
* Total H IndexRankings
Ranking Based On Selection: 13
environmental science
spatial ecology
marine ecology
Metrics
H-Index
i10 Index
Citation Counts
41
80
6,912
* Total H IndexRankings
Ranking Based On Selection: 14
Professor (Full) of Environmental Chemistry
Metrics
H-Index
i10 Index
Citation Counts
40
67
5,764
* Total H IndexRankings
Ranking Based On Selection: 15
Environmental chemistry
passive sampling
environmental sciences
pollution
Metrics
H-Index
i10 Index
Citation Counts
40
75
7,207
* Total H IndexRankings
Ranking Based On Selection: 16
Environmental Sciences
Ecotoxicology
Environmental chemistry
Metrics
H-Index
i10 Index
Citation Counts
40
59
4,570
* Total H IndexRankings
Ranking Based On Selection: 17
environmental sciences
air pollution
environmental epidemiology
Metrics
H-Index
i10 Index
Citation Counts
39
73
6,523
* Total H IndexRankings
Ranking Based On Selection: 18
environmental science
aquatic ecotoxicology
bioaccumulation
plastic pollution
trace metals
Metrics
H-Index
i10 Index
Citation Counts
36
62
5,199
* Total H IndexRankings
Ranking Based On Selection: 19
environmental risk assessment
organic contaminants
ecotoxicology
environmental monitoring
PFAS
Metrics
H-Index
i10 Index
Citation Counts
36
75
4,844
* Total H IndexRankings
Ranking Based On Selection: 20
Governance
institutions
protected areas
livelihood analysis
Metrics
H-Index
i10 Index
Citation Counts
35
61
5,906
* Total H IndexRankings
Ranking Based On Selection: 21
glaciology
climate change
earth system
Metrics
H-Index
i10 Index
Citation Counts
33
68
6,062
* Total H IndexRankings
Ranking Based On Selection: 22
water chemistry
biogeochemstry
hydrogeology
Metrics
H-Index
i10 Index
Citation Counts
32
48
6,574
* Total H IndexRankings
Ranking Based On Selection: 23
climate change adaptation
urban resilience
uncertainty
framing
science-policy interface
Metrics
H-Index
i10 Index
Citation Counts
31
54
3,833
* Total H IndexRankings
Ranking Based On Selection: 24
Peacebuilding
Sustainable Development
ESG
Climate Change and Conflict
Bangladesh
Metrics
H-Index
i10 Index
Citation Counts
31
44
2,508
* Total H IndexRankings
Ranking Based On Selection: 25
environmental science
Metrics
H-Index
i10 Index
Citation Counts
31
51
2,850
Gopalakrishnan Kumar
University of Stavanger
Stavanger, Norway
Metrics
H-Index
i10-Index
Citation Counts
95
354
29,096
Waste/wastewater treatment
cellulose/algae biofuels
Environmental Remediation. Nanotechnology
Jan S Fuglestvedt
University of Oslo
Oslo, Norway
Metrics
H-Index
i10-Index
Citation Counts
74
136
45,392
Hans Renssen
University of South Eastern Norway
Notodden, Norway
Metrics
H-Index
i10-Index
Citation Counts
69
158
13,884
Climate change impact
past climate changes
Francesco Cherubini
Metrics
H-Index
i10-Index
Citation Counts
64
116
17,497
climate and environmental sciences
Jana Sillmann
University of Oslo
Oslo, Norway
Metrics
H-Index
i10-Index
Citation Counts
54
91
18,387
climate extremes
climate change
climate models
climate variability
aerosols
Bjørn Munro Jenssen
Metrics
H-Index
i10-Index
Citation Counts
54
188
10,073
Environmental Toxicology
Ecotoxicology
Environmental Physiology
Ståle Navrud
Metrics
H-Index
i10-Index
Citation Counts
51
119
10,339
Non-market Valuation
Benefit transfer
Valuation of Ecosystem Services & Cultural Heritage & Public Health
Energy Externalities
Siri Eriksen
Metrics
H-Index
i10-Index
Citation Counts
50
89
19,714
climate change
vulnerability
adaptation
Deborah H Oughton
Metrics
H-Index
i10-Index
Citation Counts
45
113
6,584
Environmental radioactivity
radioecology
environmental chemistry
research ethics
societal impacts of ionising radiation
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!
Gijs D. Breedveld
Metrics
H-Index
i10-Index
Citation Counts
43
72
6,553
Environmental geochemistry
environmental engineering
Jarle W. Bjerke
Norwegian Institute for Nature Research
Trondheim, Norway
Metrics
H-Index
i10-Index
Citation Counts
41
86
8,024
Plant biology
Ecology
Biodiversity
Climate change impact assessments
Taxonomy
Per Fauchald
Norwegian Institute for Nature Research
Trondheim, Norway
Metrics
H-Index
i10-Index
Citation Counts
41
80
6,912
environmental science
spatial ecology
marine ecology
AG Asimakopoulos
Metrics
H-Index
i10-Index
Citation Counts
40
67
5,764
Professor (Full) of Environmental Chemistry
Ian John Allan
Metrics
H-Index
i10-Index
Citation Counts
40
75
7,207
Environmental chemistry
passive sampling
environmental sciences
pollution
Elisabeth Lie
Metrics
H-Index
i10-Index
Citation Counts
40
59
4,570
Environmental Sciences
Ecotoxicology
Environmental chemistry
Alena Bartonova
Metrics
H-Index
i10-Index
Citation Counts
39
73
6,523
environmental sciences
air pollution
environmental epidemiology
environmental science
aquatic ecotoxicology
bioaccumulation
plastic pollution
trace metals
Merete Grung
Metrics
H-Index
i10-Index
Citation Counts
36
75
4,844
environmental risk assessment
organic contaminants
ecotoxicology
environmental monitoring
PFAS
P Vedeld
Metrics
H-Index
i10-Index
Citation Counts
35
61
5,906
Governance
institutions
protected areas
livelihood analysis
Kenichi Matsuoka
Norwegian Polar Institute
Tromsø, Norway
Metrics
H-Index
i10-Index
Citation Counts
33
68
6,062
glaciology
climate change
earth system
Brit Lisa Skjelkvåle
University of Oslo
Oslo, Norway
Metrics
H-Index
i10-Index
Citation Counts
32
48
6,574
water chemistry
biogeochemstry
hydrogeology
Arjan Wardekker
University of Bergen
Bergen, Norway
Metrics
H-Index
i10-Index
Citation Counts
31
54
3,833
climate change adaptation
urban resilience
uncertainty
framing
science-policy interface
Peacebuilding
Sustainable Development
ESG
Climate Change and Conflict
Bangladesh
Daniela M Pampanin
University of Stavanger
Stavanger, Norway
Metrics
H-Index
i10-Index
Citation Counts
31
51
2,850
environmental science