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Biology and Biochemistry
Austria
2026
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Environmental Sciences
Austria
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 119 130 122 3 3 411 118111
Biology and Biochemistry 100 1478 1328 8 8 240 99322

Keywan Riahi publications per year

The chart shows the history of publications by Keywan Riahi between 2000 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Keywan Riahi published across 26 years, from 2000 to 2025, averaging 19.8 papers a year. Output peaked at 36 publications in 2023. 56 of the 515 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 2000 to 2025. Vertical axis: number of publications, 0 to 36. Peak 36 publications in 2023. 2000: 10 publications 2001: 4 publications 2002: 3 publications 2003: 7 publications 2004: 15 publications 2005: 7 publications 2006: 6 publications 2007: 9 publications 2008: 10 publications 2009: 11 publications 2010: 19 publications 2011: 16 publications 2012: 29 publications 2013: 20 publications 2014: 29 publications 2015: 28 publications 2016: 28 publications 2017: 26 publications 2018: 28 publications 2019: 31 publications 2020: 26 publications 2021: 29 publications 2022: 32 publications 2023: 36 publications 2024: 32 publications 2025: 24 publications
2000 2025

515 publications in total across all disciplines

View publications per year as a table
Keywan Riahi: publications per year, 2000 to 2025
Year Publications
2000 10
2001 4
2002 3
2003 7
2004 15
2005 7
2006 6
2007 9
2008 10
2009 11
2010 19
2011 16
2012 29
2013 20
2014 29
2015 28
2016 28
2017 26
2018 28
2019 31
2020 26
2021 29
2022 32
2023 36
2024 32
2025 24
Total 515
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Keywan Riahi publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Keywan Riahi sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 411–420 publications, is where this scientist sits. 41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 411 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541
121–130 617
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318
211–220 282
221–230 263
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40 411
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
Download as CSV

Keywan Riahi D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Keywan Riahi sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 119 D-Index, is where this scientist sits. 30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 119 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166
59 177
60 166
61 152
62 143
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5 119
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
Download as CSV

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in Austria Leader Award
  • 2026 - Research.com Environmental Sciences in Austria Leader Award
  • 2025 - Research.com Environmental Sciences in Austria Leader Award
  • 2023 - Research.com Biology and Biochemistry in Austria Leader Award
  • 2023 - Research.com Environmental Sciences in Austria Leader Award
  • 2022 - Research.com Biology and Biochemistry in Austria Leader Award
  • 2022 - Research.com Environmental Sciences in Austria Leader Award

Overview

Keywan Riahi is affiliated with the International Institute for Applied Systems Analysis in Austria. Their research primarily spans the field of Environmental Science, with a focus on various subfields including Economics and Econometrics, Global and Planetary Change, Environmental Engineering, Mechanical Engineering, and Renewable Energy, Sustainability and the Environment.

The scientist's work covers a range of topics, notably Climate Change Policy and Economics, Atmospheric and Environmental Gas Dynamics, Environmental Impact and Sustainability, Carbon Dioxide Capture Technologies, Energy and Environment Impacts, Energy, Environment, and Transportation Policies, and Water-Energy-Food Nexus Studies.

Riahi has contributed to multiple publication venues, with frequent appearances in:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Nature Climate Change
  • IIASA PURE (International Institute of Applied Systems Analysis)
  • Environmental Research Letters
  • Nature Communications

Notable recent papers by Keywan Riahi include:

  • Harmonization of global land use change and management for the period 850-2100 (LUH2) for CMIP6, 2020, Geoscientific model development
  • Climate model projections from the Scenario Model Intercomparison Project (ScenarioMIP) of CMIP6, 2021, Earth System Dynamics
  • Achievements and needs for the climate change scenario framework, 2020, Nature Climate Change
  • Taking stock of national climate policies to evaluate implementation of the Paris Agreement, 2020, Nature Communications
  • Author Correction: Implications of intercontinental renewable electricity trade for energy systems and emissions, 2023, Nature Energy

Among frequent co-authors are Volker Krey, Bas van Ruijven, Detlef P. van Vuuren, Edward Byers, and Oliver Fricko, reflecting collaborations across multiple projects related to environmental and climate research.

Keywan Riahi has also contributed to book publications with the International Institute for Applied Systems Analysis, including the work titled Methodologies and Tools for Integrated Systems Modelling published in 2020.

Best Publications

  • The representative concentration pathways: an overview

    Detlef P. van Vuuren;Detlef P. van Vuuren;Jae Edmonds;Mikiko Kainuma;Keywan Riahi

  • Special report on emissions scenarios : a special report of Working group III of the Intergovernmental Panel on Climate Change

    N. Nakicenovic;J. Alcamo;G. Davis;B. de Vries

  • Special report on emissions scenarios

    Nebojsa Nakicenovic;Joseph Alcamo;Gerald Davis;Bert de Vries

  • The next generation of scenarios for climate change research and assessment

    Richard H. Moss;Jae A. Edmonds;Kathy A. Hibbard;Martin R. Manning

  • The Shared Socioeconomic Pathways and their energy, land use, and greenhouse gas emissions implications: An overview

    Keywan Riahi;Detlef P. van Vuuren;Elmar Kriegler;Jae Edmonds

  • Climate Change 2007 Synthesis report

    Lenny Bernstein;Peter Bosch;Osvaldo Canziani;Zhenlin Chen

  • The Scenario Model Intercomparison Project (ScenarioMIP) for CMIP6

    Brian C. O'Neill;Claudia Tebaldi;Detlef P. Van Vuuren;Detlef P. Van Vuuren;Veronika Eyring

  • The RCP greenhouse gas concentrations and their extensions from 1765 to 2300

    Malte Meinshausen;Malte Meinshausen;S. J. Smith;K. Calvin;J. S. Daniel

  • Paris Agreement climate proposals need a boost to keep warming well below 2 °C

    Joeri Rogelj;Joeri Rogelj;Michel den Elzen;Niklas Höhne;Taryn Fransen

  • The roads ahead: Narratives for shared socioeconomic pathways describing world futures in the 21st century

    Brian C. O'Neill;Elmar Kriegler;Kristie L. Ebi;Eric Kemp-Benedict

  • RCP 8.5—A scenario of comparatively high greenhouse gas emissions

    Keywan Riahi;Shilpa Rao;Volker Krey;Cheolhung Cho

  • A new scenario framework for climate change research: the concept of shared socioeconomic pathways

    Brian C. O’Neill;Elmar Kriegler;Keywan Riahi;Kristie Lee Ebi

  • Historical (1850–2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application

    J.-F. Lamarque;T. C. Bond;V. Eyring;Claire Granier;Claire Granier;Claire Granier

  • IPCC, 2007: Climate Change 2007: Synthesis Report

    L. Bernstein;P. Bosch;O. Canziani;Z. Chen

  • Scenarios of long-term socio-economic and environmental development under climate stabilization

    Keywan Riahi;Arnulf Grübler;Arnulf Grübler;Nebojsa Nakicenovic

  • Harmonization of land-use scenarios for the period 1500–2100: 600 years of global gridded annual land-use transitions, wood harvest, and resulting secondary lands

    G. C. Hurtt;G. C. Hurtt;L. P. Chini;S. Frolking;R. A. Betts

  • Scenarios towards limiting global mean temperature increase below 1.5 °C

    Joeri Rogelj;Joeri Rogelj;Alexander Popp;Katherine V. Calvin;Gunnar Luderer

  • The hydrogen economy in the 21st century: a sustainable development scenario

    L Barreto;A Makihira;A Makihira;K Riahi

  • A low energy demand scenario for meeting the 1.5 °c target and sustainable development goals without negative emission technologies

    Arnulf Grubler;Charlie Wilson;Charlie Wilson;Nuno Bento;Nuno Bento;Benigna Boza-Kiss

  • Energy system transformations for limiting end-of-century warming to below 1.5 °C

    Joeri Rogelj;Joeri Rogelj;Gunnar Luderer;Robert C. Pietzcker;Elmar Kriegler

  • Thenextgenerationofscenariosforclimate change research and assessment

    RichardH . Moss;Timothy R. Carter;Seita Emori;Mikiko Kainuma

Frequent Co-Authors

Detlef P. van Vuuren
Detlef P. van Vuuren Utrecht University
Volker Krey
Volker Krey International Institute for Applied Systems Analysis
Joeri Rogelj
Joeri Rogelj Imperial College London
David L. McCollum
David L. McCollum Oak Ridge National Laboratory
Elmar Kriegler
Elmar Kriegler Potsdam Institute for Climate Impact Research
Nebojsa Nakicenovic
Nebojsa Nakicenovic International Institute for Applied Systems Analysis
Shinichiro Fujimori
Shinichiro Fujimori Kyoto University
Massimo Tavoni
Massimo Tavoni Polytechnic University of Milan
Malte Meinshausen
Malte Meinshausen University of Melbourne
Arnulf Grubler
Arnulf Grubler International Institute for Applied Systems Analysis

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Related Online Degrees & Career Pathways

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