World Scientist and University Rankings 2025
Canada Engineering & Technology / Environmental Science & Engineering 662 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 Feb 02, 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 (870.053) 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
air pollution
environmental health
environmental epidemiology
built environment
Metrics
H-Index
i10 Index
Citation Counts
149
447
168,916
* Total H IndexRankings
Ranking Based On Selection: 2
Conservation Biology
stable isotopes
Metrics
H-Index
i10 Index
Citation Counts
124
577
62,289
* Total H IndexRankings
Ranking Based On Selection: 3
Environmental Engineering
Environmental science
Biotechnology
Metrics
H-Index
i10 Index
Citation Counts
116
409
42,687
* Total H IndexRankings
Ranking Based On Selection: 4
Limnology
Paleolimnology
Limnogeology
Arctic
Diatoms
Metrics
H-Index
i10 Index
Citation Counts
112
622
57,420
* Total H IndexRankings
Ranking Based On Selection: 5
planning of energy and environmental systems
synchrotron-based environmental chemistry and biochemistry
climate modeling and d
Metrics
H-Index
i10 Index
Citation Counts
105
838
48,929
* Total H IndexRankings
Ranking Based On Selection: 6
water quality modeling
wastewater treatment
control
micropollutants
resource recovery
Metrics
H-Index
i10 Index
Citation Counts
104
478
39,681
* Total H IndexRankings
Ranking Based On Selection: 7
Satellite Remote Sensing
Air Quality
Metrics
H-Index
i10 Index
Citation Counts
99
225
87,492
* Total H IndexRankings
Ranking Based On Selection: 8
wildland fire
climate change
fire weather
landscape fire modelling
Metrics
H-Index
i10 Index
Citation Counts
95
222
40,226
* Total H IndexRankings
Ranking Based On Selection: 9
Environmental Science
Ecotoxicology
Risk Assessment.
Metrics
H-Index
i10 Index
Citation Counts
93
347
34,788
* Total H IndexRankings
Ranking Based On Selection: 10
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation Counts
88
292
29,997
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
Water Resources Management
Human-Water Systems
Sustainable Agriculture
Artificial Intelligence
Water Resources
Metrics
H-Index
i10 Index
Citation Counts
81
266
24,124
* Total H IndexRankings
Ranking Based On Selection: 12
climate
climate policy
climate solutions
oceanography
meteorology
Metrics
H-Index
i10 Index
Citation Counts
80
199
42,956
* Total H IndexRankings
Ranking Based On Selection: 13
Arctic
cold-regions hydrology
climate change
hydro-ecology
hydro-climatology
Metrics
H-Index
i10 Index
Citation Counts
74
205
28,206
* Total H IndexRankings
Ranking Based On Selection: 14
Environmental Science and Engineering: monitoring
risk assessment
remediation
Metrics
H-Index
i10 Index
Citation Counts
74
227
15,728
* Total H IndexRankings
Ranking Based On Selection: 15
environment
work & health
Metrics
H-Index
i10 Index
Citation Counts
72
271
25,944
* Total H IndexRankings
Ranking Based On Selection: 16
Environmental Toxicology
Environmental Chemistry
Risk Assessment
Metrics
H-Index
i10 Index
Citation Counts
72
171
15,953
* Total H IndexRankings
Ranking Based On Selection: 17
Environmental Chemistry
Soil Biogeochemistry
Natural Organic Matter
Environmental Metabolomics
Metrics
H-Index
i10 Index
Citation Counts
68
224
15,598
* Total H IndexRankings
Ranking Based On Selection: 18
biomass conversion
pentose-fermenting yeasts
pollutant degradation
pathogen detection
Metrics
H-Index
i10 Index
Citation Counts
68
205
19,157
* Total H IndexRankings
Ranking Based On Selection: 19
ethnobotany
Metrics
H-Index
i10 Index
Citation Counts
67
173
21,062
* Total H IndexRankings
Ranking Based On Selection: 20
Bioprocess
Vaccines
Metrics
H-Index
i10 Index
Citation Counts
67
175
12,928
* Total H IndexRankings
Ranking Based On Selection: 21
environmental toxicology
exposure science
ecotoxicology
environmental health
mercury
Metrics
H-Index
i10 Index
Citation Counts
65
212
20,633
* Total H IndexRankings
Ranking Based On Selection: 22
sea ice
climate change
Arctic
Metrics
H-Index
i10 Index
Citation Counts
65
262
14,107
* Total H IndexRankings
Ranking Based On Selection: 23
Environmental Pollution
Environmental Risk Assessment
Fish Biology
Endocrine Disruption
Mechanisms of Toxic Action
Metrics
H-Index
i10 Index
Citation Counts
64
180
12,218
* Total H IndexRankings
Ranking Based On Selection: 24
environmental engineering
chemical engineering
biochemical engineering
civil engineering
Metrics
H-Index
i10 Index
Citation Counts
63
222
13,306
* Total H IndexRankings
Ranking Based On Selection: 25
Governance Coasts Oceans Fisheries SES Resilience
Metrics
H-Index
i10 Index
Citation Counts
62
133
19,805
Michael Brauer
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
149
447
168,916
air pollution
environmental health
environmental epidemiology
built environment
Keith A Hobson
Environment Canada
Ottawa, Canada
Metrics
H-Index
i10-Index
Citation Counts
124
577
62,289
Conservation Biology
stable isotopes
Joo Hwa Tay
University of Calgary
Calgary, Canada
Metrics
H-Index
i10-Index
Citation Counts
116
409
42,687
Environmental Engineering
Environmental science
Biotechnology
John Smol
Queen's University Kingston
Kingston, Canada
Metrics
H-Index
i10-Index
Citation Counts
112
622
57,420
Limnology
Paleolimnology
Limnogeology
Arctic
Diatoms
Guohe Huang
University of Regina
Regina, Canada
Metrics
H-Index
i10-Index
Citation Counts
105
838
48,929
planning of energy and environmental systems
synchrotron-based environmental chemistry and biochemistry
climate modeling and d
Peter A Vanrolleghem
Université Laval
Québec, Canada
Metrics
H-Index
i10-Index
Citation Counts
104
478
39,681
water quality modeling
wastewater treatment
control
micropollutants
resource recovery
Aaron Van Donkelaar
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
99
225
87,492
Satellite Remote Sensing
Air Quality
Mike Flannigan
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
95
222
40,226
wildland fire
climate change
fire weather
landscape fire modelling
Keith Solomon
University of Guelph
Guelph, Canada
Metrics
H-Index
i10-Index
Citation Counts
93
347
34,788
Environmental Science
Ecotoxicology
Risk Assessment.
Frank Wania
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
88
292
29,997
Environmental Chemistry
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!
Jan Franklin Adamowski
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
81
266
24,124
Water Resources Management
Human-Water Systems
Sustainable Agriculture
Artificial Intelligence
Water Resources
Andrew Weaver
Metrics
H-Index
i10-Index
Citation Counts
80
199
42,956
climate
climate policy
climate solutions
oceanography
meteorology
Terry Prowse
Metrics
H-Index
i10-Index
Citation Counts
74
205
28,206
Arctic
cold-regions hydrology
climate change
hydro-ecology
hydro-climatology
Jalal Hawari
École Polytechnique de Montréal
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
74
227
15,728
Environmental Science and Engineering: monitoring
risk assessment
remediation
Donald Cole
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
271
25,944
environment
work & health
Paul Jones
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
171
15,953
Environmental Toxicology
Environmental Chemistry
Risk Assessment
Myrna Simpson
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
68
224
15,598
Environmental Chemistry
Soil Biogeochemistry
Natural Organic Matter
Environmental Metabolomics
Hung Lee
University of Guelph
Guelph, Canada
Metrics
H-Index
i10-Index
Citation Counts
68
205
19,157
biomass conversion
pentose-fermenting yeasts
pollutant degradation
pathogen detection
Nancy Turner
Metrics
H-Index
i10-Index
Citation Counts
67
173
21,062
Amine Kamen
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
67
175
12,928
Niladri Nil Basu
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
65
212
20,633
environmental toxicology
exposure science
ecotoxicology
environmental health
mercury
David Barber
University of Manitoba
Winnipeg, Canada
Metrics
H-Index
i10-Index
Citation Counts
65
262
14,107
sea ice
climate change
Arctic
Markus Hecker
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
64
180
12,218
Environmental Pollution
Environmental Risk Assessment
Fish Biology
Endocrine Disruption
Mechanisms of Toxic Action
George Nakhla
Western University Canada
London, Canada
Metrics
H-Index
i10-Index
Citation Counts
63
222
13,306
environmental engineering
chemical engineering
biochemical engineering
civil engineering
Derek Armitage
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
62
133
19,805
Governance Coasts Oceans Fisheries SES Resilience