Limited role of climate change in extreme low rainfall associated with southern Madagascar food insecurity, 2019-21
Harrington, Luke J., Wolski, Piotr, Pinto, Izidine, Ramarosandratana, Anzelà M., Barimalala, Rondrotiana, Vautard, Robert, Philip, Sjoukje, Kew, Sarah, Singh, Roop, Heinrich, Dorothy, Arrighi, Julie, Raju, Emmanuel, Thalheimer, Lisa, Razanakoto, Thierry, van Aalst, Maarten K., Li, Sihan, Bonnet, Remy, Yang, Wenchang, Otto, Friederike and van Oldenborgh, Geert, (2022). Limited role of climate change in extreme low rainfall associated with southern Madagascar food insecurity, 2019-21. Environmental Research: Climate, n/a-n/a
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Sub-type Journal article Author Harrington, Luke J.
Wolski, Piotr
Pinto, Izidine
Ramarosandratana, Anzelà M.
Barimalala, Rondrotiana
Vautard, Robert
Philip, Sjoukje
Kew, Sarah
Singh, Roop
Heinrich, Dorothy
Arrighi, Julie
Raju, Emmanuel
Thalheimer, Lisa
Razanakoto, Thierry
van Aalst, Maarten K.
Li, Sihan
Bonnet, Remy
Yang, Wenchang
Otto, Friederike
van Oldenborgh, GeertTitle Limited role of climate change in extreme low rainfall associated with southern Madagascar food insecurity, 2019-21 Appearing in Environmental Research: Climate Publication Date 2022-11-28 Place of Publication Bristol Publisher IOP Publishing Start page n/a End page n/a Language eng Abstract Southern Madagascar recently experienced a severe food security crisis, made significantly worse by well below average rainfall from July 2019 to June 2021. This exceptional drought has affected a region with high pre-existing levels of vulnerability to food insecurity (subsistence agriculture and pastoralism in the region is rain-fed only), while impacts have been compounded further by COVID-19 restrictions and pest infestations. The rainy seasons of both 2019/20 and 2020/21 saw just 60% of normal rainfall across the Grand Sud region and was estimated as a 1-in-135 year dry event, only surpassed in severity by the devastating drought of 1990-92. Based on a combination of observations and climate modelling, the likelihood of experiencing such poor rains in the region was not significantly increased due to human-caused climate change: while the observations and models combine to indicate a small shift toward more droughts like the 2019-2021 event as a consequence of climate change, these trends remain overwhelmed by natural variability. This result is consistent with previous research, with the IPCC's Sixth Assessment Report concluding that any perceptible changes in drought will only emerge in this region if global mean temperatures exceed 2°C above pre-industrial levels. UNBIS Thesaurus FOOD SECURITY
DROUGHTKeyword Extreme event attribution Copyright Holder The Authors Copyright Year 2022 Copyright type Creative commons DOI 10.1088/2752-5295/aca695 -
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