Impacts of 1.5 versus 2.0 °C on cereal yields in the West African Sudan Savanna
Abstract
To reduce the risks of climate change, governments agreed in the Paris Agreement to limit global temperature rise to less than 2.0 °C above pre-industrial levels, with the ambition to keep warming to 1.5 °C. Charting appropriate mitigation responses requires information on the costs of mitigating versus associated damages for the two levels of warming. In this assessment, a critical consideration is the impact on crop yields and yield variability in regions currently challenged by food insecurity. The current study assessed impacts of 1.5 °C versus 2.0 °C on yields of maize, pearl millet and sorghum in the West African Sudan Savanna using two crop models that were calibrated with common varieties from experiments in the region with management reflecting a range of typical sowing windows. As sustainable intensification is promoted in the region for improving food security, simulations were conducted for both current fertilizer use and for an intensification case (fertility not limiting). With current fertilizer use, results indicated 2% units higher losses for maize and sorghum with 2.0 °C compared to 1.5 °C warming, with no change in millet yields for either scenario. In the intensification case, yield losses due to climate change were larger than with currentmore »
- Authors:
-
- Univ. of Bonn (Germany). Inst. of Crop Science and Resource Conservation
- Univ. of Bonn (Germany). Inst. of Crop Science and Resource Conservation; Leibniz Centre for Agricultural Landscape Research (ZALF), Muncheburg (Germany). Inst. of Landscape Systems Analysis
- West African Science Service Center on CLimate Change and Adapted Land Use (WASCAL), Ouagadougou (Burkina Faso)
- Univ. of Ghana, Kpong (Ghana). College of Basic and Applied Sciences, Soil and Irrigation Research Centre
- Centre de Coop. International pour la Recherche Agronomique pour le Developpement (CIRAD), Montpellier (France); ICRISAT International Crops Research Inst. for the Semi-arid Tropics, Bamako (Mali); Inst. National de l'Environnement et de Recherches Agricoles (INERA), Ouagadougou (Burkina Faso)
- Center for Development Research (ZEF), Bonn (Germany)
- Climate Analytics, Berlin (Germany); Potsdam inst. for Climate Impact Research, Potsdam (Germany)
- NASA Goddard Inst. for Space Studies (GISS), Broadway, NY (United States)
- German Aerospace Center (DLR), Wessling (Germany). German Remote Sensing Data Center (DFD)
- Univ. of Florida, Gainesville, FL (United States). Inst. for Sustainable Food Systems, Dept. of Agricultural and Biological Engineering
- Climate Analytics, Berlin (Germany); King Abdulaziz Univ., Jeddah (Saudi Arabia). Centre of Excellence for Climate Change Research
- UN Food and Agricultural Organization (FAO), Rome (Italy)
- Karlsruhe Inst. of Technology (KIT) Garmisch-Partenkirchen (Germany). IMK-IFU, Inst. of Meteorology and Climate Research
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Aeronautics and Space Agency (NASA)
- OSTI Identifier:
- 1523640
- Grant/Contract Number:
- AC02–5CH11231; 01LG1202A-I; 01LG1202A1-I1
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Environmental Research Letters
- Additional Journal Information:
- Journal Volume: 13; Journal Issue: 3; Journal ID: ISSN 1748-9326
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES
Citation Formats
Faye, Babacar, Webber, Heidi, Naab, Jesse B., MacCarthy, Dilys S., Adam, Myriam, Ewert, Frank, Lamers, John P. A., Schleussner, Carl-Friedrich, Ruane, Alex, Gessner, Ursula, Hoogenboom, Gerrit, Boote, Ken, Shelia, Vakhtang, Saeed, Fahad, Wisser, Dominik, Hadir, Sofia, Laux, Patrick, and Gaiser, Thomas. Impacts of 1.5 versus 2.0 °C on cereal yields in the West African Sudan Savanna. United States: N. p., 2018.
Web. doi:10.1088/1748-9326/aaab40.
Faye, Babacar, Webber, Heidi, Naab, Jesse B., MacCarthy, Dilys S., Adam, Myriam, Ewert, Frank, Lamers, John P. A., Schleussner, Carl-Friedrich, Ruane, Alex, Gessner, Ursula, Hoogenboom, Gerrit, Boote, Ken, Shelia, Vakhtang, Saeed, Fahad, Wisser, Dominik, Hadir, Sofia, Laux, Patrick, & Gaiser, Thomas. Impacts of 1.5 versus 2.0 °C on cereal yields in the West African Sudan Savanna. United States. https://doi.org/10.1088/1748-9326/aaab40
Faye, Babacar, Webber, Heidi, Naab, Jesse B., MacCarthy, Dilys S., Adam, Myriam, Ewert, Frank, Lamers, John P. A., Schleussner, Carl-Friedrich, Ruane, Alex, Gessner, Ursula, Hoogenboom, Gerrit, Boote, Ken, Shelia, Vakhtang, Saeed, Fahad, Wisser, Dominik, Hadir, Sofia, Laux, Patrick, and Gaiser, Thomas. Thu .
"Impacts of 1.5 versus 2.0 °C on cereal yields in the West African Sudan Savanna". United States. https://doi.org/10.1088/1748-9326/aaab40. https://www.osti.gov/servlets/purl/1523640.
@article{osti_1523640,
title = {Impacts of 1.5 versus 2.0 °C on cereal yields in the West African Sudan Savanna},
author = {Faye, Babacar and Webber, Heidi and Naab, Jesse B. and MacCarthy, Dilys S. and Adam, Myriam and Ewert, Frank and Lamers, John P. A. and Schleussner, Carl-Friedrich and Ruane, Alex and Gessner, Ursula and Hoogenboom, Gerrit and Boote, Ken and Shelia, Vakhtang and Saeed, Fahad and Wisser, Dominik and Hadir, Sofia and Laux, Patrick and Gaiser, Thomas},
abstractNote = {To reduce the risks of climate change, governments agreed in the Paris Agreement to limit global temperature rise to less than 2.0 °C above pre-industrial levels, with the ambition to keep warming to 1.5 °C. Charting appropriate mitigation responses requires information on the costs of mitigating versus associated damages for the two levels of warming. In this assessment, a critical consideration is the impact on crop yields and yield variability in regions currently challenged by food insecurity. The current study assessed impacts of 1.5 °C versus 2.0 °C on yields of maize, pearl millet and sorghum in the West African Sudan Savanna using two crop models that were calibrated with common varieties from experiments in the region with management reflecting a range of typical sowing windows. As sustainable intensification is promoted in the region for improving food security, simulations were conducted for both current fertilizer use and for an intensification case (fertility not limiting). With current fertilizer use, results indicated 2% units higher losses for maize and sorghum with 2.0 °C compared to 1.5 °C warming, with no change in millet yields for either scenario. In the intensification case, yield losses due to climate change were larger than with current fertilizer levels. However, despite the larger losses, yields were always two to three times higher with intensification, irrespective of the warming scenario. Though yield variability increased with intensification, there was no interaction with warming scenario. Risk and market analysis are needed to extend these results to understand implications for food security.},
doi = {10.1088/1748-9326/aaab40},
journal = {Environmental Research Letters},
number = 3,
volume = 13,
place = {United States},
year = {2018},
month = {2}
}
Web of Science
Figures / Tables:

Works referenced in this record:
The impact of future climate change on West African crop yields: What does the recent literature say?
journal, August 2011
- Roudier, Philippe; Sultan, Benjamin; Quirion, Philippe
- Global Environmental Change, Vol. 21, Issue 3
Differential climate impacts for policy-relevant limits to global warming: the case of 1.5 °C and 2 °C
journal, January 2016
- Schleussner, Carl-Friedrich; Lissner, Tabea K.; Fischer, Erich M.
- Earth System Dynamics, Vol. 7, Issue 2
Adaptation strategies and climate vulnerability in the Sudano-Sahelian region of West Africa
journal, January 2011
- Mertz, Ole; Mbow, Cheikh; Reenberg, Anette
- Atmospheric Science Letters, Vol. 12, Issue 1
Unravelling the effects of soil and crop management on maize productivity in smallholder agricultural systems of western Kenya—An application of classification and regression tree analysis
journal, January 2008
- Tittonell, P.; Shepherd, K.; Vanlauwe, B.
- Agriculture, Ecosystems & Environment, Vol. 123, Issue 1-3
Agricultural impacts of large-scale variability of the West African monsoon
journal, January 2005
- Sultan, Benjamin; Baron, Christian; Dingkuhn, Michael
- Agricultural and Forest Meteorology, Vol. 128, Issue 1-2
The onset of the rainy season and farmers’ sowing strategy for pearl millet cultivation in Southwest Niger
journal, October 2011
- Marteau, Romain; Sultan, Benjamin; Moron, Vincent
- Agricultural and Forest Meteorology, Vol. 151, Issue 10
Projections of climate change impacts on potential C4 crop productivity over tropical regions
journal, March 2013
- Berg, A.; de Noblet-Ducoudré, N.; Sultan, B.
- Agricultural and Forest Meteorology, Vol. 170
The Agricultural Model Intercomparison and Improvement Project (AgMIP): Protocols and pilot studies
journal, March 2013
- Rosenzweig, C.; Jones, J. W.; Hatfield, J. L.
- Agricultural and Forest Meteorology, Vol. 170
Communicating complexity: Integrated assessment of trade-offs concerning soil fertility management within African farming systems to support innovation and development
journal, February 2011
- Giller, K. E.; Tittonell, P.; Rufino, M. C.
- Agricultural Systems, Vol. 104, Issue 2
What role can crop models play in supporting climate change adaptation decisions to enhance food security in Sub-Saharan Africa?
journal, May 2014
- Webber, Heidi; Gaiser, Thomas; Ewert, Frank
- Agricultural Systems, Vol. 127
Effect of sowing date distributions on simulation of maize yields at regional scale – A case study in Central Ghana, West Africa
journal, September 2016
- Srivastava, Amit Kumar; Mboh, Cho Miltin; Gaiser, Thomas
- Agricultural Systems, Vol. 147
Climate change impact under alternate realizations of climate scenarios on maize yield and biomass in Ghana
journal, January 2018
- Srivastava, Amit Kumar; Mboh, Cho Miltin; Zhao, Gang
- Agricultural Systems, Vol. 159
Climate change impacts on European crop yields: Do we need to consider nitrogen limitation?
journal, November 2015
- Webber, Heidi; Zhao, Gang; Wolf, Joost
- European Journal of Agronomy, Vol. 71
How accurately do maize crop models simulate the interactions of atmospheric CO2 concentration levels with limited water supply on water use and yield?
journal, October 2018
- Durand, Jean-Louis; Delusca, Kenel; Boote, Ken
- European Journal of Agronomy, Vol. 100
Options for support to agriculture and food security under climate change
journal, January 2012
- Vermeulen, S. J.; Aggarwal, P. K.; Ainslie, A.
- Environmental Science & Policy, Vol. 15, Issue 1
Reanalysis of a global soil database for crop and environmental modeling
journal, July 2012
- Romero, Consuelo C.; Hoogenboom, Gerrit; Baigorria, Guillermo A.
- Environmental Modelling & Software, Vol. 35
Simulating canopy temperature for modelling heat stress in cereals
journal, March 2016
- Webber, H.; Ewert, F.; Kimball, B. A.
- Environmental Modelling & Software, Vol. 77
Modeling nutrient and water productivity of sorghum in smallholder farming systems in a semi-arid region of Ghana
journal, September 2010
- MacCarthy, Dilys S.; Vlek, Paul L. G.; Bationo, A.
- Field Crops Research, Vol. 118, Issue 3
Adapting and evaluating the CROPGRO-peanut model for response to phosphorus on a sandy-loam soil under semi-arid tropical conditions
journal, May 2015
- Naab, J. B.; Boote, K. J.; Jones, J. W.
- Field Crops Research, Vol. 176
Baseline simulation for global wheat production with CIMMYT mega-environment specific cultivars
journal, February 2017
- Gbegbelegbe, S.; Cammarano, D.; Asseng, S.
- Field Crops Research, Vol. 202
Modelling the impact of heat stress on maize yield formation
journal, November 2016
- Gabaldón-Leal, C.; Webber, H.; Otegui, M. E.
- Field Crops Research, Vol. 198
Assessing crop model improvements through comparison of sorghum ( sorghum bicolor L. moench) simulation models: A case study of West African varieties
journal, February 2017
- Akinseye, F. M.; Adam, M.; Agele, S. O.
- Field Crops Research, Vol. 201
Modelling cereal crops to assess future climate risk for family food self-sufficiency in southern Mali
journal, February 2017
- Traore, Bouba; Descheemaeker, Katrien; van Wijk, Mark T.
- Field Crops Research, Vol. 201
Modeling the response of maize phenology, kernel set, and yield components to heat stress and heat shock with CSM-IXIM
journal, December 2017
- Lizaso, J. I.; Ruiz-Ramos, M.; Rodríguez, L.
- Field Crops Research, Vol. 214
Physical robustness of canopy temperature models for crop heat stress simulation across environments and production conditions
journal, February 2018
- Webber, Heidi; White, Jeffrey W.; Kimball, Bruce A.
- Field Crops Research, Vol. 216
CERES-Maize and CERES-Sorghum for modeling growth, nitrogen and phosphorus uptake, and soil moisture dynamics in the dry savanna of West Africa
journal, March 2018
- Amouzou, Kokou Adambounou; Naab, Jesse B.; Lamers, John P. A.
- Field Crops Research, Vol. 217
Crop responses to elevated CO2 and interactions with H2O, N, and temperature
journal, June 2016
- Kimball, Bruce A.
- Current Opinion in Plant Biology, Vol. 31
An assessment of yield gains under climate change due to genetic modification of pearl millet
journal, December 2017
- Singh, Piara; Boote, K. J.; Kadiyala, M. D. M.
- Science of The Total Environment, Vol. 601-602
The DSSAT cropping system model
journal, January 2003
- Jones, J. W.; Hoogenboom, G.; Porter, C. H.
- European Journal of Agronomy, Vol. 18, Issue 3-4
A soil and terrain digital database (SOTER) for improved land use planning in Central Benin
journal, June 2004
- Igué, Attanda Mouinou; Gaiser, Thomas; Stahr, Karl
- European Journal of Agronomy, Vol. 21, Issue 1
Markets, Climate Change, and Food Security in West Africa
journal, November 2009
- Brown, Molly E.; Hintermann, Beat; Higgins, Nathaniel
- Environmental Science & Technology, Vol. 43, Issue 21
Pearl millet genome sequence provides a resource to improve agronomic traits in arid environments
journal, September 2017
- Varshney, Rajeev K.; Shi, Chengcheng; Thudi, Mahendar
- Nature Biotechnology, Vol. 35, Issue 10
Uncertainty in simulating wheat yields under climate change
journal, June 2013
- Asseng, S.; Ewert, F.; Rosenzweig, C.
- Nature Climate Change, Vol. 3, Issue 9
Food security under climate change
journal, December 2015
- Hertel, Thomas W.
- Nature Climate Change, Vol. 6, Issue 1
1.5 °C and climate research after the Paris Agreement
journal, February 2016
- Hulme, Mike
- Nature Climate Change, Vol. 6, Issue 3
Regional disparities in the beneficial effects of rising CO2 concentrations on crop water productivity
journal, April 2016
- Deryng, Delphine; Elliott, Joshua; Folberth, Christian
- Nature Climate Change, Vol. 6, Issue 8
Science and policy characteristics of the Paris Agreement temperature goal
journal, July 2016
- Schleussner, Carl-Friedrich; Rogelj, Joeri; Schaeffer, Michiel
- Nature Climate Change, Vol. 6, Issue 9
Drivers of household food availability in sub-Saharan Africa based on big data from small farms
journal, December 2015
- Frelat, Romain; Lopez-Ridaura, Santiago; Giller, Ken E.
- Proceedings of the National Academy of Sciences, Vol. 113, Issue 2
Robust negative impacts of climate change on African agriculture
journal, January 2010
- Schlenker, Wolfram; Lobell, David B.
- Environmental Research Letters, Vol. 5, Issue 1
Assessing climate change impacts on sorghum and millet yields in the Sudanian and Sahelian savannas of West Africa
journal, March 2013
- Sultan, B.; Roudier, P.; Quirion, P.
- Environmental Research Letters, Vol. 8, Issue 1
Robust features of future climate change impacts on sorghum yields in West Africa
journal, October 2014
- Sultan, B.; Guan, K.; Kouressy, M.
- Environmental Research Letters, Vol. 9, Issue 10
How do various maize crop models vary in their responses to climate change factors?
journal, April 2014
- Bassu, Simona; Brisson, Nadine; Durand, Jean-Louis
- Global Change Biology, Vol. 20, Issue 7
Food Security: The Challenge of Feeding 9 Billion People
journal, January 2010
- Godfray, H. C. J.; Beddington, J. R.; Crute, I. R.
- Science, Vol. 327, Issue 5967
Climate Change Impacts on Global Food Security
journal, August 2013
- Wheeler, T.; von Braun, J.
- Science, Vol. 341, Issue 6145
The impact of future climate change on West African crop yields: What does the recent literature say?
text, January 2018
- Roudier, Philippe; Sultan, Benjamin; Quirion, Philippe
- Open Science Framework
Differential climate impacts for policy-relevant limits to global warming: the case of 1.5 °C and 2 °C
journal, January 2015
- Schleussner, C. -F.; Lissner, T. K.; Fischer, E. M.
- Earth System Dynamics Discussions, Vol. 6, Issue 2
Global gridded crop model evaluation: benchmarking, skills, deficiencies and implications
journal, January 2017
- Müller, Christoph; Elliott, Joshua; Chryssanthacopoulos, James
- Geoscientific Model Development, Vol. 10, Issue 4
Half a degree additional warming, prognosis and projected impacts (HAPPI): background and experimental design
journal, January 2017
- Mitchell, Daniel; AchutaRao, Krishna; Allen, Myles
- Geoscientific Model Development, Vol. 10, Issue 2
Farming in the West African Sudan Savanna: Insights in the context of climate change [English]
journal, October 2013
- Callo-Concha, Daniel; Gaiser, Thomas; Webber, Heidi
- African Journal of Agricultural Research, Vol. 8, Issue 38
Half a degree additional warming, prognosis and projected impacts (HAPPI): Background and experimental design
text, January 2017
- Mitchell, Daniel; AchutaRao, Krishna; Allen, Myles
- ETH Zurich
Global gridded crop model evaluation: benchmarking, skills, deficiencies and implications
text, January 2017
- Müller, Christoph; Elliott, Joshua; Chryssanthacopoulos, James
- Karlsruhe
Half a degree additional warming, prognosis and projected impacts (HAPPI): Background and experimental design
text, January 2017
- Mitchell, D.; AchutaRao, K.; Allen, M.
- Apollo - University of Cambridge Repository
Differential climate impacts for policy-relevant limits to global warming: The case of 1.5 °c and 2 °c
text, January 2016
- Schleussner, Carl-Friedrich; Lissner, Tabea K.; Fischer, Erich M.
- ETH Zurich
Works referencing / citing this record:
Projected Heat Stress Under 1.5 °C and 2 °C Global Warming Scenarios Creates Unprecedented Discomfort for Humans in West Africa
journal, July 2018
- Sylla, Mouhamadou Bamba; Faye, Aissatou; Giorgi, Filippo
- Earth's Future, Vol. 6, Issue 7
Climate change to severely impact West African basin scale irrigation in 2 °C and 1.5 °C global warming scenarios
journal, September 2018
- Sylla, Mouhamadou Bamba; Pal, Jeremy S.; Faye, Aissatou
- Scientific Reports, Vol. 8, Issue 1
Global wheat production with 1.5 and 2.0°C above pre‐industrial warming
journal, January 2019
- Liu, Bing; Martre, Pierre; Ewert, Frank
- Global Change Biology, Vol. 25, Issue 4
Twenty-First Century Projected Changes in Extreme Temperature over Côte d’Ivoire (West Africa)
journal, December 2019
- Yapo, Assi L. M.; Diawara, Adama; Yoroba, Fidèle
- International Journal of Geophysics, Vol. 2019
Role of Modelling in International Crop Research: Overview and Some Case Studies
journal, December 2018
- Reynolds, Matthew; Kropff, Martin; Crossa, Jose
- Agronomy, Vol. 8, Issue 12
Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices
journal, October 2019
- Freduah, Bright; MacCarthy, Dilys; Adam, Myriam
- Agronomy, Vol. 9, Issue 10
Abiotic Stresses Intervene with ABA Signaling to Induce Destructive Metabolic Pathways Leading to Death: Premature Leaf Senescence in Plants
journal, January 2019
- Asad, Muhammad; Zakari, Shamsu; Zhao, Qian
- International Journal of Molecular Sciences, Vol. 20, Issue 2
Modelling Rainfed Pearl Millet Yield Sensitivity to Abiotic Stresses in Semi-Arid Central Tanzania, Eastern Africa
journal, August 2019
- Silungwe, Festo Richard; Graef, Frieder; Dorothea Bellingrath-Kimura, Sonoko
- Sustainability, Vol. 11, Issue 16
Climate change to severely impact West African basin scale irrigation in 2 °C and 1.5 °C global warming scenarios
text, January 2018
- Sylla, Mouhamadou Bamba; Pal, Jeremy S.; Faye, Aissatou
- Karlsruhe
Figures / Tables found in this record: