Total 2,448,390 scientists, country 221, and institutions 24,477 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1

Waste/wastewater treatment
cellulose/algae biofuels
Environmental Remediation. Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
354
338
0.955
* Total i10 IndexRankings
Ranking Based On Selection: 2

environment
climate
energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
221
179
0.810
* Total i10 IndexRankings
Ranking Based On Selection: 3

Environmental Toxicology
Ecotoxicology
Environmental Physiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
114
0.606
* Total i10 IndexRankings
Ranking Based On Selection: 4

Climate change impact
past climate changes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
158
106
0.671
* Total i10 IndexRankings
Ranking Based On Selection: 5

Climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
136
101
0.743
* Total i10 IndexRankings
Ranking Based On Selection: 6

Non-market Valuation
Benefit transfer
Valuation of Ecosystem Services & Cultural Heritage & Public Health
Energy Externalities
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
119
73
0.613
* Total i10 IndexRankings
Ranking Based On Selection: 7

climate and environmental sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
107
0.922
* Total i10 IndexRankings
Ranking Based On Selection: 8

Environmental radioactivity
radioecology
environmental chemistry
research ethics
societal impacts of ionising radiation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
55
0.487
* Total i10 IndexRankings
Ranking Based On Selection: 9

climate extremes
climate change
climate models
climate variability
aerosols
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
89
0.978
* Total i10 IndexRankings
Ranking Based On Selection: 10

climate change
vulnerability
adaptation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
66
0.742
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* Total i10 IndexRankings
Ranking Based On Selection: 11

Plant biology
Ecology
Biodiversity
Climate change impact assessments
Taxonomy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
59
0.686
* Total i10 IndexRankings
Ranking Based On Selection: 12

environmental science
spatial ecology
marine ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
62
0.775
* Total i10 IndexRankings
Ranking Based On Selection: 13

Environmental chemistry
passive sampling
environmental sciences
pollution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
57
0.760
* Total i10 IndexRankings
Ranking Based On Selection: 14

environmental risk assessment
organic contaminants
ecotoxicology
environmental monitoring
PFAS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
43
0.573
* Total i10 IndexRankings
Ranking Based On Selection: 15

environmental sciences
air pollution
environmental epidemiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
37
0.507
* Total i10 IndexRankings
Ranking Based On Selection: 16

Environmental geochemistry
environmental engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
48
0.667
* Total i10 IndexRankings
Ranking Based On Selection: 17

glaciology
climate change
earth system
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
42
0.618
* Total i10 IndexRankings
Ranking Based On Selection: 18

Professor (Full) of Environmental Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
63
0.940
* Total i10 IndexRankings
Ranking Based On Selection: 19

environmental science
aquatic ecotoxicology
bioaccumulation
plastic pollution
trace metals
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
55
0.887
* Total i10 IndexRankings
Ranking Based On Selection: 20

Governance
institutions
protected areas
livelihood analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
43
0.705
* Total i10 IndexRankings
Ranking Based On Selection: 21

Environmental Sciences
Ecotoxicology
Environmental chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
41
0.695
* Total i10 IndexRankings
Ranking Based On Selection: 22

climate change adaptation
urban resilience
uncertainty
framing
science-policy interface
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
36
0.667
* Total i10 IndexRankings
Ranking Based On Selection: 23

environmental sciences
meteorology
atmospheric chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
19
0.358
* Total i10 IndexRankings
Ranking Based On Selection: 24

environmental science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
30
0.588
* Total i10 IndexRankings
Ranking Based On Selection: 25

water chemistry
biogeochemstry
hydrogeology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
18
0.375
Gopalakrishnan Kumar
University of Stavanger
Stavanger, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
354
338
0.955
Waste/wastewater treatment
cellulose/algae biofuels
Environmental Remediation. Nanotechnology
Edgar Hertwich
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
221
179
0.810
environment
climate
energy
Bjørn Munro Jenssen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
114
0.606
Environmental Toxicology
Ecotoxicology
Environmental Physiology
Hans Renssen
University of South Eastern Norway
Notodden, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
158
106
0.671
Climate change impact
past climate changes
Jan S Fuglestvedt
University of Oslo
Oslo, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
136
101
0.743
Ståle Navrud
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
119
73
0.613
Non-market Valuation
Benefit transfer
Valuation of Ecosystem Services & Cultural Heritage & Public Health
Energy Externalities
Francesco Cherubini
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
107
0.922
climate and environmental sciences
Deborah H Oughton
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
55
0.487
Environmental radioactivity
radioecology
environmental chemistry
research ethics
societal impacts of ionising radiation
Jana Sillmann
University of Oslo
Oslo, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
89
0.978
climate extremes
climate change
climate models
climate variability
aerosols
Siri Eriksen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
66
0.742
climate change
vulnerability
adaptation
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!
Jarle W. Bjerke
Norwegian Institute for Nature Research
Trondheim, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
59
0.686
Plant biology
Ecology
Biodiversity
Climate change impact assessments
Taxonomy
Per Fauchald
Norwegian Institute for Nature Research
Trondheim, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
62
0.775
environmental science
spatial ecology
marine ecology
Ian John Allan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
57
0.760
Environmental chemistry
passive sampling
environmental sciences
pollution
Merete Grung
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
43
0.573
environmental risk assessment
organic contaminants
ecotoxicology
environmental monitoring
PFAS
Alena Bartonova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
37
0.507
environmental sciences
air pollution
environmental epidemiology
Gijs D. Breedveld
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
48
0.667
Environmental geochemistry
environmental engineering
Kenichi Matsuoka
Norwegian Polar Institute
Tromsø, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
42
0.618
glaciology
climate change
earth system
AG Asimakopoulos
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
63
0.940
Professor (Full) of Environmental Chemistry
Farhan R. Khan
Norce Research
Bergen, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
55
0.887
environmental science
aquatic ecotoxicology
bioaccumulation
plastic pollution
trace metals
P Vedeld
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
43
0.705
Governance
institutions
protected areas
livelihood analysis
Elisabeth Lie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
41
0.695
Environmental Sciences
Ecotoxicology
Environmental chemistry
Arjan Wardekker
University of Bergen
Bergen, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
36
0.667
climate change adaptation
urban resilience
uncertainty
framing
science-policy interface
Leonor Tarrason
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
19
0.358
environmental sciences
meteorology
atmospheric chemistry
Daniela M Pampanin
University of Stavanger
Stavanger, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
30
0.588
environmental science
Brit Lisa Skjelkvåle
University of Oslo
Oslo, Norway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
18
0.375
water chemistry
biogeochemstry
hydrogeology