The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Climate Change
Carbon Dating
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,863
15,081
0.378
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Invasion Ecology
Biological Invasions
Zooplankton Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,247
1,374
0.324
* Total Citation Counts Rankings
Ranking Based On Selection: 3
environmental and sustainability education
climate change education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,951
1,187
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Speleothem Science
Groundwater
Climate Change
Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,568
1,091
0.696
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Environmental Psychology
Animal Behaviour
Behaviour Analysis
Remembering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,173
666
0.568
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
785
157
0.200
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Antarctic environmental science
Human impacts on soil environments
temperature sensitivity of soil processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
232
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Environmental Science and Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32
28
0.875
Alan Hogg
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,863
15,081
0.378
Climate Change
Carbon Dating
Ian C Duggan
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,247
1,374
0.324
Invasion Ecology
Biological Invasions
Zooplankton Ecology
Chris Eames
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,951
1,187
0.402
environmental and sustainability education
climate change education
Adam Hartland
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,568
1,091
0.696
Speleothem Science
Groundwater
Climate Change
Biogeochemistry
Rebecca Sargisson
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,173
666
0.568
Environmental Psychology
Animal Behaviour
Behaviour Analysis
Remembering
Earl Bardsley
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
785
157
0.200
Tanya O'Neill
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
232
0.571
Antarctic environmental science
Human impacts on soil environments
temperature sensitivity of soil processes
Amir Mohammadi
University of Waikato
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32
28
0.875
Environmental Science and Engineering