Mutua, John Y.

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§ Climate-induced heat stress negatively affects livestock growth and reproduction.§ Heat stress levels are already high and likely to increase further in the future.§ There is a need to prepare for the impending impact of heat stress on livestock in terms of agricultural extension and policy.Mapping current and future heat stress risk in livestock in East AfricaPartnersOutcomes• Developed a method that can be applied in other regions. for mapping heat stress risk  in livestock.CLIMATE CHANGE &GREENHOUSE GAS REDUCTIONThe CGIAR Research Program on Livestock thanks all donors & organizations which globally support its work through their contributions to the CGIAR Trust Fund. cgiar.org/fundersThis document is licensed for use under the Creative Commons Attribution 4.0 International Licence. June 2020Put a caption for your images or graphs together with either photo credit or source. Context• By 2100 temperature is expected to increase by 1.8-4.3° C while relative humidity is expected to increase by 4-7% based on RCP 4.5 and RCP 8.5 scenarios in East Africa .• However, there is little to no information on how changes in heat stress  will affect  livestock in East Africa.Our innovative approach• Spatial analysis technique used to map areas where livestock species are at risk of exposure to heat stress based on a Temperature-Humidity Index (THI).• ERA-Interim reanalysis data used to map heat stress risk during the historical period.• Projections are based on a multi-model ensemble of GCMs (periods: 2021-2050 and 2071-2100; RCPs: 4.5 and 8.5) from CORDEX Africa.Future steps • Expand current work to other livestock species and regions.• Improve methodology to include adaptation, impact calculation and estimation etc.John Mutua, Alliance of BioversityInternational and CIATj.y.mutua@cgiar.orgLIVESTOCK AND ENVIRONMENTSome effects of heat stress

Mapping current and future heat stress risk in livestock in East Africa

https://cgspace.cgiar.org/bitstream/10568/109170/1/mutua.pdf

Mapping current and future heat stress risk in livestock in East Africa

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