World Scientist and University Rankings 2025
Germany Engineering & Technology / Environmental Science & Engineering 281 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 31, 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
atmospheric chemistry and physics
remote sensing
Metrics
H-Index
i10 Index
Citation Counts
93
285
30,152
* Total H IndexRankings
Ranking Based On Selection: 2
sustainable development
climate change
water
health
Metrics
H-Index
i10 Index
Citation Counts
86
456
31,585
* Total H IndexRankings
Ranking Based On Selection: 3
Metaorganism
Microbiome
Symbiosis
Coral Reefs
Climate Change Adaptation
Metrics
H-Index
i10 Index
Citation Counts
86
256
24,277
* Total H IndexRankings
Ranking Based On Selection: 4
Metrics
H-Index
i10 Index
Citation Counts
86
210
35,543
* Total H IndexRankings
Ranking Based On Selection: 5
Environmental Biotechnology
Chain Elongation
Microbial Electrochemistry
Power-to-Gas
Resource Recovery
Metrics
H-Index
i10 Index
Citation Counts
85
179
34,328
* Total H IndexRankings
Ranking Based On Selection: 6
Energy Systems Transformation
Sustainable Energy
Climate Change Mitigation
Energy and Climate Policies
Metrics
H-Index
i10 Index
Citation Counts
84
164
34,921
* Total H IndexRankings
Ranking Based On Selection: 7
climate change
carbon cycle
Earth system modeling
Metrics
H-Index
i10 Index
Citation Counts
80
164
39,684
* Total H IndexRankings
Ranking Based On Selection: 8
Synthetic Biology
Biochemical and Biological Engineering
Biomaterials
Metrics
H-Index
i10 Index
Citation Counts
77
239
20,128
* Total H IndexRankings
Ranking Based On Selection: 9
Permafrost
remote sensing
Arctic climate change
permafrost carbon
thermokarst
Metrics
H-Index
i10 Index
Citation Counts
75
192
25,423
* Total H IndexRankings
Ranking Based On Selection: 10
climate change mitigation
carbon dioxide removal
evidence synthesis
data science for evidence synthesis
Metrics
H-Index
i10 Index
Citation Counts
72
135
53,278
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!
* Total H IndexRankings
Ranking Based On Selection: 11
Ecotoxicology
Environmental Sciences
Metrics
H-Index
i10 Index
Citation Counts
69
189
16,879
* Total H IndexRankings
Ranking Based On Selection: 12
Metrics
H-Index
i10 Index
Citation Counts
67
177
16,658
* Total H IndexRankings
Ranking Based On Selection: 13
indoor air pollution
aerosol particles
particulate matter
ultrafine particles
Metrics
H-Index
i10 Index
Citation Counts
66
161
17,664
* Total H IndexRankings
Ranking Based On Selection: 14
Environmental Science
Biodiversity
Socio-Ecological Systems
Metrics
H-Index
i10 Index
Citation Counts
65
139
17,244
* Total H IndexRankings
Ranking Based On Selection: 15
Spatial planning /Raumplanung
Climate Change /Klimawandel
Vulnerability
Adaptation
Resilience
Metrics
H-Index
i10 Index
Citation Counts
63
160
27,752
* Total H IndexRankings
Ranking Based On Selection: 16
Nitrogen
Agriculture
Climate Change
Food
Metrics
H-Index
i10 Index
Citation Counts
60
90
19,326
* Total H IndexRankings
Ranking Based On Selection: 17
climate change impacts
water resources
modeling
water quality
Metrics
H-Index
i10 Index
Citation Counts
60
110
20,449
* Total H IndexRankings
Ranking Based On Selection: 18
Energy Markets
Climate Change Mitigation
Model Coupling
Land-Use
Resource Rents
Metrics
H-Index
i10 Index
Citation Counts
59
117
17,519
* Total H IndexRankings
Ranking Based On Selection: 19
peatlands
palaeoecology
conservation
climate change
carbon trading
Metrics
H-Index
i10 Index
Citation Counts
59
153
15,629
* Total H IndexRankings
Ranking Based On Selection: 20
Metrics
H-Index
i10 Index
Citation Counts
57
198
17,395
* Total H IndexRankings
Ranking Based On Selection: 21
Hydrology
Climatology
Modeling
Process Studies
Metrics
H-Index
i10 Index
Citation Counts
57
146
10,915
* Total H IndexRankings
Ranking Based On Selection: 22
Urban Meteorology
Air Pollution
Urban Human-biometeorology
Forest Meteorology
Metrics
H-Index
i10 Index
Citation Counts
56
144
19,675
* Total H IndexRankings
Ranking Based On Selection: 23
Hydrologic extremes
Climate change
Water security/scarcity
Heatwaves
Metrics
H-Index
i10 Index
Citation Counts
55
123
10,397
* Total H IndexRankings
Ranking Based On Selection: 24
Extreme Weather
Atmospheric Circulation
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
54
93
19,461
* Total H IndexRankings
Ranking Based On Selection: 25
Grassland
Ecology
Environmental Science
Plant Physiology
Metrics
H-Index
i10 Index
Citation Counts
54
115
8,292
Andreas Richter
Universität Bremen
Bremen, Germany
Metrics
H-Index
i10-Index
Citation Counts
93
285
30,152
atmospheric chemistry and physics
remote sensing
Walter Leal Filho
Metrics
H-Index
i10-Index
Citation Counts
86
456
31,585
sustainable development
climate change
water
health
Christian R Voolstra
Universität Konstanz
Konstanz, Germany
Metrics
H-Index
i10-Index
Citation Counts
86
256
24,277
Metaorganism
Microbiome
Symbiosis
Coral Reefs
Climate Change Adaptation
Claudia Pahl Wostl
Universität Osnabruck
Osnabrück, Germany
Metrics
H-Index
i10-Index
Citation Counts
86
210
35,543
Largus T Angenent
Universität Tubingen
Tübingen, Germany
Metrics
H-Index
i10-Index
Citation Counts
85
179
34,328
Environmental Biotechnology
Chain Elongation
Microbial Electrochemistry
Power-to-Gas
Resource Recovery
Gunnar Luderer
Technische Universität Berlin
Berlin, Germany
Metrics
H-Index
i10-Index
Citation Counts
84
164
34,921
Energy Systems Transformation
Sustainable Energy
Climate Change Mitigation
Energy and Climate Policies
Julia Pongratz
Metrics
H-Index
i10-Index
Citation Counts
80
164
39,684
climate change
carbon cycle
Earth system modeling
An Ping Zeng
Metrics
H-Index
i10-Index
Citation Counts
77
239
20,128
Synthetic Biology
Biochemical and Biological Engineering
Biomaterials
Guido Grosse
Metrics
H-Index
i10-Index
Citation Counts
75
192
25,423
Permafrost
remote sensing
Arctic climate change
permafrost carbon
thermokarst
Jan C Minx
Metrics
H-Index
i10-Index
Citation Counts
72
135
53,278
climate change mitigation
carbon dioxide removal
evidence synthesis
data science for evidence synthesis
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!
Jörg Oehlmann
Goethe University Frankfurt
Frankfurt, Germany
Metrics
H-Index
i10-Index
Citation Counts
69
189
16,879
Ecotoxicology
Environmental Sciences
Lehmann Irina
Metrics
H-Index
i10-Index
Citation Counts
67
177
16,658
Wolfram Birmili
Metrics
H-Index
i10-Index
Citation Counts
66
161
17,664
indoor air pollution
aerosol particles
particulate matter
ultrafine particles
Ralf Seppelt
Metrics
H-Index
i10-Index
Citation Counts
65
139
17,244
Environmental Science
Biodiversity
Socio-Ecological Systems
JOERN BIRKMANN
Universität Stuttgart
Stuttgart, Germany
Metrics
H-Index
i10-Index
Citation Counts
63
160
27,752
Spatial planning /Raumplanung
Climate Change /Klimawandel
Vulnerability
Adaptation
Resilience
Benjamin Leon Bodirsky
Metrics
H-Index
i10-Index
Citation Counts
60
90
19,326
Nitrogen
Agriculture
Climate Change
Food
Martina Flörke
Ruhr Universität Bochum
Bochum, Germany
Metrics
H-Index
i10-Index
Citation Counts
60
110
20,449
climate change impacts
water resources
modeling
water quality
Nico Bauer
Metrics
H-Index
i10-Index
Citation Counts
59
117
17,519
Energy Markets
Climate Change Mitigation
Model Coupling
Land-Use
Resource Rents
Hans Joosten
Ernst Moritz Arndt Universität Greifswald
Greifswald, Germany
Metrics
H-Index
i10-Index
Citation Counts
59
153
15,629
peatlands
palaeoecology
conservation
climate change
carbon trading
Irena Hajnsek
Metrics
H-Index
i10-Index
Citation Counts
57
198
17,395
Axel Bronstert
Universität Potsdam
Potsdam, Germany
Metrics
H-Index
i10-Index
Citation Counts
57
146
10,915
Hydrology
Climatology
Modeling
Process Studies
Helmut Mayer retd
Universität Freiburg
Freiburg, Germany
Metrics
H-Index
i10-Index
Citation Counts
56
144
19,675
Urban Meteorology
Air Pollution
Urban Human-biometeorology
Forest Meteorology
Rohini Kumar
Metrics
H-Index
i10-Index
Citation Counts
55
123
10,397
Hydrologic extremes
Climate change
Water security/scarcity
Heatwaves
Dim Coumou
Metrics
H-Index
i10-Index
Citation Counts
54
93
19,461
Extreme Weather
Atmospheric Circulation
Climate Change
Hans Schnyder
Metrics
H-Index
i10-Index
Citation Counts
54
115
8,292
Grassland
Ecology
Environmental Science
Plant Physiology