Dr. Christian Klassert

Christian Klassert is the co-speaker of the Working Group Social-Science Water Research. His work combines coupled human-natural systems modeling, agent-based modeling, and econometrics to assess the water security impacts of unequal urban water access and agricultural droughts. Christian contributes to the development of large-scale models of water security in Jordan (Jordan Water Project), food-water-energy nexus sustainability in the Indian Upper Bhima Basin (FUSE Project), and agricultural drought adaptation in Germany (UFZ Graduate Schools AGRI-TRANSFORM and Thirsty Cities). His results have been published in Nature Sustainability, Proceedings of the National Academy of Sciences (PNAS), Earth's Future, and other journals. He acts as a reviewer for a range of journals, including Nature Water, One Earth, and Water Resources and Economics and as co-chair of the Working Group Human Systems Modeling of the MultiSector Dynamics (MSD) community of practice. Christian is a co-recipient of the UFZ Research award 2022 for his inter- and transdisciplinary work assessing the risk of future water crises in the country of Jordan.

Curriculum Vitae

Professional appointments

Academic degrees

Projects

UFZ Graduate School AGRI-TRANSFORM – Leverage Points for the Transformation to an Environmentally Sustainable Agriculture

UFZ Graduate School Thirsty Cities – Pathways for Water-Resilient Urban Transformation and Agricultural Adaptation

Future Earth project NexusFootprints – Combining Indicators for Urban Food-Water-Energy Nexus Comparison

Belmont Forum project FUSE – Food-water-energy for Urban Sustainable Environments

BMUB project JordanCap – Jordan Water Project Capacity Building: Development and Implementation of a Strategic Modeling Tool for Water Management in Jordan

Belmont Forum project Jordan Water Project – Integrated Analysis of Freshwater Resources Sustainability in Jordan                               

Helmholtz IVF project Drivers of Bioenergy Production and Transregional Effects

EU FP7 project POLICYMix – Assessing the role of economic instruments in policy mixes for biodiversity conservation and ecosystem services provision

Recent publications

Full list of publications available at: Google Scholar profile

Selected publications:

Klassert, C., Yoon, J., Sigel, K., Klauer, B., Talozi, S., Lachaut, T., Selby, P., Knox, S., Avisse, N., Tilmant, A., Harou, J.J., Mustafa, D., Meddelin-Azuara, J., Bataineh, B., Zhang, H., Gawel, E., Gorelick, S.M. (2023) Unexpected growth of an illegal water market. Nature Sustainability. DOI: 10.1038/s41893-023-01177-7

Yoon, J., Klassert, C., Selby, P., Lachaut, T., Knox, S., Avisse, N., Harou, J., Tilmant, A., Klauer, B., Mustafa, D., Sigel, K., Talozi, S., Gawel, E., Meddelin-Azuara, J., Bataineh, B., Zhang, H., & Gorelick, S.M. (2021). Coupled human-natural system analysis of freshwater security under climate and population change. Proceedings of the National Academy of Sciences (PNAS), 118(14): e2020431118. DOI: 10.1073/pnas.2020431118

Yoon, J., Romero‐Lankao, P., Yang, Y. E., Klassert, C., et al. (2022). A typology for characterizing human action in multisector dynamics models. Earth's Future, 10(8). DOI: 10.1029/2021EF002641

In review:

Nagpal, M., Heilemann, J., Samaniego, L., Klauer, B., Gawel, E., & Klassert, C. (in review). Measuring extremes-driven direct biophysical impacts in agricultural drought damages. EGUsphere, 2024, 1-20. Pre-print DOI: https://doi.org/10.5194/egusphere-2024-2585

Nagpal, M., Klassert, C., Heilemann, J., Klauer, B., & Gawel, E. (in review). Measuring Crop Acreage Adaptation to Changing Yields and Prices: An Empirical Analysis for Agriculture in Germany. Pre-print available at SSRN: 4728661

Other recent publications: (2021 − now)

Zhu, Y., Gawel, E., Klauer, B., & Klassert, C. (2024). Impacts of intermittent water supply on household electricity demand: An econometric analysis for the Pune Metropolitan Region, India. Water Resources and Economics, 48, 100250. DOI: https://doi.org/10.1016/j.wre.2024.100250

Zhu, Y., Klassert, C., Klauer, B., & Gawel, E. (2024). Understanding the Water-Energy Nexus at the Private Household Level: An Economic Perspective. Water Economics and Policy. DOI: https://doi.org/10.1142/S2382624X24500103

Yoon, J., Voisin, N., Klassert, C., Thurber, T., and Xu, W. (2024). Representing farmer irrigated crop area adaptation in a large-scale hydrological model. Hydrol. Earth Syst. Sci., 28, 899–916. DOI: 10.5194/hess-28-899-2024

Klassert, C. (2023). Unequal, unreliable, and unfixable?—The need to investigate water infrastructure improvements in intermittent supply systems. Water Resources Research, 59(11), e2023WR036208. DOI: 10.1029/2023WR036208

Kuhlicke, C., de Brito, M. M., Bartkowski, B., Botzen, W., Doğulu, C., Han, S., ... Klassert, C., ... & Rufat, S. (2023). Spinning in circles? A systematic review on the role of theory in social vulnerability, resilience and adaptation research. Global Environmental Change, 80, 102672. DOI: 10.1016/j.gloenvcha.2023.102672

Karutz, R., Klassert, C., & Kabisch, S. (2023). On farmland and floodplains—Modeling urban growth impacts based on global population scenarios in Pune, India. Land, 12(5), 1051. DOI: 10.3390/su14095323

Lachaut, T., Yoon, J., Klassert, C., & Tilmant, A. (2022). Aggregation in bottom-up vulnerability assessments and equity implications: The case of Jordanian households’ water supply. Advances in Water Resources, 169, 104311. DOI: 10.1016/j.advwatres.2022.104311

Zozmann, H., Morgan, A., Klassert, C., Klauer, B., & Gawel, E. (2022). Can Tanker Water Services Contribute to Sustainable Access to Water? A Systematic Review of Case Studies in Urban Areas. Sustainability, 14(17), 11029. DOI: 10.3390/su141711029

Klauer, B., Küblböck, K., Omann, I., Karutz, R., Klassert, C., Zhu, Y., ... & Gorelick, S. (2022). Stakeholder Workshops Informing System Modeling—Analyzing the Urban Food–Water–Energy Nexus in Amman, Jordan. Sustainability, 14(19), 11984. DOI: 10.3390/su141911984

Zozmann, H., Klassert, C., Klauer, B., & Gawel, E. (2022). Water procurement time and its implications for household water demand—Insights from a water diary study in five informal settlements of Pune, India. Water, 14(7), 1009. DOI: 10.3390/w14071009

Karutz, R., Omann, I., Gorelick, S. M., Klassert, C., Zozmann, H., Zhu, Y., ... & Klauer, B. (2022). Capturing Stakeholders’ Challenges of the Food–Water–Energy Nexus—A Participatory Approach for Pune and the Bhima Basin, India. Sustainability, 14(9), 5323. DOI: 10.3390/su14095323

Zozmann, H., Klassert, C., Klauer, B., & Gawel, E. (2022). Heterogeneity, household co-production, and risks of water services—Water demand of private households with multiple water sources. Water Economics and Policy, 8(01), 2250006. DOI: 10.1142/S2382624X22500060

For further publications, please see my Google Scholar profile