Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
IInterests: Grassland Science
Ecology
C Cycle
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,260
2,161
0.192
* Total Citation Counts Rankings
Ranking Based On Selection :2
Microalgae biotechnology
environmental engineering
environmental microbiology and biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,858
4,653
0.429
* Total Citation Counts Rankings
Ranking Based On Selection :3
Environmental science
volcanic impacts
analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,530
1,422
0.403
* Total Citation Counts Rankings
Ranking Based On Selection :4
biogeochemical cycle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,938
1,747
0.901
* Total Citation Counts Rankings
Ranking Based On Selection :5
climate change communication
environmental communication
science communication
health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,838
1,479
0.805
* Total Citation Counts Rankings
Ranking Based On Selection :6
sustainability
climate change
culture
cultural identity
Maori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,124
448
0.399
* Total Citation Counts Rankings
Ranking Based On Selection :7
Environmental sciences
Nutrient cycling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
969
615
0.635
Tony Parsons
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,260
2,161
0.192
IInterests: Grassland Science
Ecology
C Cycle
Climate Change
Benoit Guieysse
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,858
4,653
0.429
Microalgae biotechnology
environmental engineering
environmental microbiology and biotechnology
Carol Stewart
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,530
1,422
0.403
Environmental science
volcanic impacts
analytical chemistry
Paramsothy Jeyakumar
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,938
1,747
0.901
Jagadish Thaker JT|Jagadish Thaker
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,838
1,479
0.805
climate change communication
environmental communication
science communication
health
Brendan Stevenson
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,124
448
0.399
sustainability
climate change
culture
cultural identity
Maori
Neha Jha
Massey University
Palmerston North, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
969
615
0.635
Environmental sciences
Nutrient cycling