Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.isci.2022.105551
Licence creative commons licence
Title (Primary) Agriculture and food security under a changing climate: An underestimated challenge
Author Seppelt, R.; Klotz, S.; Peiter, E.; Volk, M.
Source Titel iScience
Year 2022
Department CLE; BZF; iDiv
Volume 25
Issue 12
Page From art. 105551
Language englisch
Topic T5 Future Landscapes
Keywords Climate Change; Food Security; Interlinked Processes; Systemic Integrative Research; Nexus
Abstract Pathways to eradicate global hunger while bending the curve of biodiversity loss unanimously suggest changing to less energy-rich diets, closing yield gaps through agroecological principles, adopting modern breeding technologies to foster stress resilience and yields, as well as minimizing harvest losses and food waste. Against the background of a brief history of global agriculture, we review the available evidence on how the global food system might look given a global temperature increase by 3°. We show that a moderate gain in the area suitable for agriculture is confronted with substantial yield losses through strains on crop physiology, multitrophic interactions, and more frequent extreme events. Self-amplifying feedbacks are unresolved and might lead to further losses. In light of these uncertainties, we see that complexity is underestimated and more systemic research is needed. Efficiency gains in agriculture, albeit indispensable, will not be enough to achieve food security under severe climate change.
Persistent UFZ Identifier
Seppelt, R., Klotz, S., Peiter, E., Volk, M. (2022):
Agriculture and food security under a changing climate: An underestimated challenge
iScience 25 (12), art. 105551 10.1016/j.isci.2022.105551