World's Best Scientists 2026 revealed!
Robert J. Lempert

Robert J. Lempert

D-Index & Metrics

Environmental Sciences

D-Index
52
Citations
14934
World Ranking
4391
National Ranking
1633

Robert J. Lempert 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 Robert J. Lempert sits on this spectrum.

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: 283 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: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 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 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 162 publications — 48th percentile

48% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Robert J. Lempert 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 Robert J. Lempert sits on this spectrum.

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: 199 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: 19 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: 99 scientists
30 D-Index 125+

This scientist: 52 D-Index — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Research.com Recognitions

  • 2003 - Fellow of American Physical Society (APS) Citation For leadership in showing how modern computer technology and insights from the study of complex adaptive systems can be applied to policy problems in science, technology, and environmental policy

Overview

Robert J. Lempert is affiliated with the RAND Corporation in the United States. Their research spans several interdisciplinary fields, with a particular focus on environmental science, economics, econometrics, and social sciences. These areas of study are reflected in their extensive publication record and collaboration network.

Key fields of study related to Lempert's work include:

  • Environmental Science
  • Economics, Econometrics and Finance
  • Social Sciences

Within these domains, their research touches several subfields, notably:

  • Economics and Econometrics
  • Global and Planetary Change
  • Transportation
  • Sociology and Political Science
  • Renewable Energy, Sustainability and the Environment

Lempert's main research topics include:

  • Climate Change Policy and Economics
  • Sustainability and Climate Change Governance
  • COVID-19 Epidemiological Studies
  • Health Systems, Economic Evaluations, Quality of Life
  • Advanced Causal Inference Techniques
  • Transportation Planning and Optimization
  • Global Energy and Sustainability Research

Their recent academic papers include:

  • "A framework for complex climate change risk assessment" (2021), published in One Earth
  • "Defining the solution space to accelerate climate change adaptation" (2020), published in Regional Environmental Change
  • "Engaging Multiple Worldviews With Quantitative Decision Support: A Robust Decision-Making Demonstration Using the Lake Model" (2020), published in Risk Analysis
  • "Climate change: making decisions in the face of deep uncertainty" (2020), published in Nature
  • "Meeting Climate, Mobility, and Equity Goals in Transportation Planning Under Wide-Ranging Scenarios" (2020), published in Journal of the American Planning Association

Lempert has collaborated frequently with a number of co-authors, including:

  • Pedro Nascimento de Lima
  • Jonathan Ozik
  • Judy Lawrence
  • Raffaele Vardavas
  • Sara Turner

Publication venues where Lempert's work appears regularly include:

  • Frontiers in Climate
  • Risk Analysis
  • Environmental Modelling & Software
  • One Earth
  • Regional Environmental Change

They have contributed extensively to the RAND Corporation eBooks collection, with nine books published there. Some notable titles include:

  • "Observed Impacts, Future Risks, and Adaptation Solutions: Highlights from the Recent Intergovernmental Panel on Climate Change (IPCC) Working Group II Report" (2022)
  • "Adaptive Engagement for Undergoverned Spaces: Concepts, Challenges, and Prospects for New Approaches" (2022)
  • "Co-Designing Capabilities for a Robust Pandemic Response: Stakeholder Engagement for Visioning, Backcasting, and Evaluating New Decision-Support Capabilities" (2023)
  • "Implementing a New Mobility Vision for Rancho Higuera in a Deeply Uncertain, Fast-Changing World: Results from RAND Corporation Participatory Local Planning Workshops" (2020)

Robert J. Lempert received the Fellow of American Physical Society (APS) award in 2003 for leadership in applying modern computer technology and insights from complex adaptive systems to policy problems in science, technology, and environmental policy.

Best Publications

  • Shaping the Next One Hundred Years: New Methods for Quantitative Long-Term Policy Analysis

    Robert J. Lempert;Steven W. Popper;Steven C. Bankes

  • A General, Analytic Method for Generating Robust Strategies and Narrative Scenarios

    Robert J. Lempert;David G. Groves;Steven W. Popper;Steve C. Bankes

  • Managing the Risk of Uncertain Threshold Responses: Comparison of Robust, Optimum, and Precautionary Approaches

    Robert J. Lempert;Myles T. Collins

  • The need for and use of socio-economic scenarios for climate change analysis: A new approach based on shared socio-economic pathways

    Elmar Kriegler;Brian C. O’Neill;Stephane Hallegatte;Tom Kram

  • A framework for complex climate change risk assessment

    Nicholas P. Simpson;Katharine J. Mach;Andrew Constable;Jeremy Hess

  • A New Analytic Method for Finding Policy-Relevant Scenarios:

    David G. Groves;Robert J. Lempert

  • Many objective robust decision making for complex environmental systems undergoing change

    Joseph R. Kasprzyk;Shanthi Nataraj;Patrick M. Reed;Robert J. Lempert

  • Climate change: New dimensions in disaster risk, exposure, vulnerability, and resilience

    Allan Lavell;Michael Oppenheimer;Cherif Diop;Jeremy Hess

  • Identifying and evaluating robust adaptive policy responses to climate change for water management agencies in the American west

    Robert J. Lempert;David G. Groves

  • Climate prediction: a limit to adaptation?

    Suraje Dessai;Mike Hulme;Robert Lempert;Roger Pielke

  • A new decision sciences for complex systems

    Robert J. Lempert

  • Improving the contribution of climate model information to decision making: the value and demands of robust decision frameworks

    Christopher P. Weaver;Robert J. Lempert;Casey Brown;John A Hall

  • Investment decision making under deep uncertainty -- application to climate change

    Stephane Hallegatte;Ankur Shah;Robert J. Lempert;Robert J. Lempert;Casey Brown

  • Robust Strategies for Abating Climate Change

    Robert J. Lempert;Michael E. Schlesinger

  • Robust climate policies under uncertainty: a comparison of robust decision making and info-gap methods.

    Jim W. Hall;Robert J. Lempert;Klaus Keller;Andrew Hackbarth

  • Characterizing Climate-Change Uncertainties for Decision-Makers. An Editorial Essay

    Robert Lempert;Nebojsa Nakicenovic;Daniel Sarewitz;Michael Schlesinger

  • Characterizing Climate-Change Uncertainties for Decision-Makers

    Robert J. Lempert;Nebojsa Nakicenovic;Daniel R Sarewitz;Michael E. Schlesinger

  • Do We Need Better Predictions to Adapt to a Changing Climate

    Suraje Dessai;Mike Hulme;Mike Hulme;Robert J. Lempert;Roger A. Pielke

  • Agreeing on robust decisions : new processes for decision making under deep uncertainty

    Nidhi Kalra;Stephane Hallegatte;Robert Lempert;Casey Brown

  • A sequential-decision strategy for abating climate change

    James K. Hammitt;Robert J. Lempert;Michael E. Schlesinger

  • The Need for and Use of Socio-Economic Scenarios for Climate Change Analysis

    Elmar Kriegler;Brian C. O'Neill;Stephane Hallegatte;Tom Kram

  • Improving the Contribution of Climate Model Information to Decision Making

    Christopher P. Weaver;Robert J. Lempert;Casey Brown;John A. Hall

Frequent Co-Authors

Klaus Keller
Klaus Keller Dartmouth College
Michael E. Schlesinger
Michael E. Schlesinger University of Illinois at Urbana-Champaign
Casey Brown
Casey Brown University of Massachusetts Amherst
Suraje Dessai
Suraje Dessai University of Leeds
James K. Hammitt
James K. Hammitt Harvard University
Nebojsa Nakicenovic
Nebojsa Nakicenovic International Institute for Applied Systems Analysis
Daniel Sarewitz
Daniel Sarewitz Arizona State University
Jim W. Hall
Jim W. Hall University of Oxford

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