Toward climate-smart agriculture in West Africa: a review of climate change impacts, adaptation strategies and policy developments for the livestock, fishery and crop production sectors

Zougmoré, Robert B.; Partey, Samuel T.; Ouédraogo, Mathieu; Omitoyin, Bamidele Oluwarotimi; Thomas, Timothy S.; Ayantunde, Augustine A.; Ericksen, Polly J.; Said, Mohammed Yahya; Jalloh, Abdulai

doi:10.1186/s40066-016-0075-3

Cited by 154 publications

(131 citation statements)

References 36 publications

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“…As a result, hot extremes will become more common and deadly in many regions across the world (Gasparrini et al, 2017;Im et al, 2017;Lee & Kim, 2016;Mora et al, 2017) and in tropical Africa (Giorgi et al, 2014;Liu et al, 2017;Russo et al, 2014), with their frequency, duration, and magnitude depending on the underlying forcing scenario (Anderson et al, 2018;Dosio, 2017;Linares et al, 2014;Russo et al, 2016). Such hot extremes can have widespread impacts on human and natural systems, thereby challenging the adaptive capacity and resilience of local populations and activities (Ceccherini et al, 2017;Fontaine et al, 2013;Pal & Eltahir, 2016;Sultan & Gaetani, 2016;Zougmoré et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Projected Heat Stress Under 1.5 °C and 2 °C Global Warming Scenarios Creates Unprecedented Discomfort for Humans in West Africa

et al. 2018

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Heat and discomfort indices are applied to the multimodel ensemble mean of COordinated Regional climate Downscaling EXperiment-Africa regional climate model projections to investigate future changes in heat stress and the proportion of human population at risk under 1.5°C and 2°C global warming scenarios over West Africa. The results show that heat stress of category Extreme Caution is projected to extend spatially (up to 25%) over most of the Gulf of Guinea, Sahel, and Sahara desert areas, with different regional coverage during the various seasons. Similarly, the projected seasonal proportion of human population at discomfort substantially increases to more than 50% over most of the region. In particular, in June-August over the Sahel and the western Sahara desert, new areas (15% of West Africa) where most of the population is at risk emerge. This indicates that from 50% to almost everyone over most of the Sahel countries and part of the western Sahara desert is at risk of possible heat cramp, heat exhaustion, and heat stroke in future climate scenarios. These conditions become more frequent and are accompanied by the emergence of days with dangerous heat stress category during which everyone feels discomfort and is vulnerable to a likely heat cramp and heat exhaustion. In general, all the above features are more extended and more frequent in the 2°C than in the 1.5°C scenario. Protective measures are thus required for outdoor workers, occupational settings in hot environments, and people engaged in strenuous activities.

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Section: Introductionmentioning

confidence: 99%

Projected Heat Stress Under 1.5 °C and 2 °C Global Warming Scenarios Creates Unprecedented Discomfort for Humans in West Africa

et al. 2018

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“…Recently, there are observed deviations in the commencement of agricultural activity, for instance, due to changes in the arrival of the wet season [55,62,63]. It is projected that Nigeria would experience yield decreases in cash crops of 5-40% by 2050 if no technological innovation in farming methods is implemented [33,64,65].…”

Section: Global Warming and Climate Change: The Nigerian Casementioning

confidence: 99%

The Developing World’s Contribution to Global Warming and the Resulting Consequences of Climate Change in These Regions: A Nigerian Case Study

Akanwa¹,

Joe-Ikechebelu²

2020

Global Warming and Climate Change

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Hundreds of millions of urban dwellers in low-and middle-income nations are at risk as 4-5 of the global weather-driven disasters experienced are consequent of a changing climate. Studies have shown that residents in least developed countries have ten times more chances of being affected by these climate disasters than those in wealthy countries. Further, critical views have it, that it would take over 100years for lower income countries to attain the resiliency of developed countries. Unfortunately, global South is surrounded by a myriad of socio-economic and environmental factors limiting their fight against climate crisis. It is this germane reality that provoked the cause of this review. Hence, this paper reviewed the developing world's contribution to global warming and the resulting consequences of climate change with focus on Nigeria. This purposive approach adopted an analysis of secondary data related to climate information. The findings from the paper affirmed that impacts of climate change in developing countries include loss in agriculture/forestry resources, water shortage, food insecurity, biodiversity loss, health risks among others. Finally, it identified the major factors that exacerbate climate crisis, the human actions that trigger global warming and adaptive and mitigation approaches to minimize climate change related disasters.

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“…In sub-Saharan Africa (SSA), declining soil fertility and mismanagement of plant nutrients have made this task more difficult even when improved varieties of crops are currently available [3]. In addition, climate change continues to exacerbate already tight resource constraints by making weather more extreme and variable and by decreasing average yields worldwide [4]. Already, these pressures are forcing farmers and researchers to reassess mainstream farming techniques and consider alternative approaches to securing food.…”

Section: Introductionmentioning

confidence: 99%

“…and productivity of agricultural systems, which are directly related to increasing the adaptive capacity of farmers [5]. Climate-smart agriculture (CSA) can contribute to achieving this development agenda as it fosters the development and implementation of agriculture innovations that (1) sustainably increases agricultural productivity to support equitable increases in incomes, food security, and development; (2) adapts and builds resilience to climate change from the farm to national levels; and (3) develops opportunities to reduce greenhouse gas emissions from agriculture compared with past trends [4].…”

Section: Introductionmentioning

confidence: 99%

Why Promote Improved Fallows as a Climate-Smart Agroforestry Technology in Sub-Saharan Africa?

et al. 2017

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Abstract:In the literature, a lot is discussed about how agroforestry can achieve the mitigation, adaptation and productivity goals of climate-smart agriculture (CSA). However, this may be relatively too broad to assess the trade-offs and synergies of how specific agroforestry technologies or practices achieve the three pillars of CSA. Here, we provide an overview of how improved fallows (an agroforestry technology consisting of planting mainly legume tree/shrub species in rotation with cultivated crops) may achieve the goals of climate-smart agriculture in Sub-Saharan Africa (SSA). Our review showed that improved fallow systems have real potential to contribute to food security and climate change mitigation and adaptation in SSA. Under proper management, improved fallows can increase maize yields to about 6 t ha −1 , which is comparable to conventional maize yields under fertilization. This is attributed to improved soil fertility and nutrient use efficiency. Although data was generally limited, the growing literature showed that improved fallows increased soil carbon sequestration and reduced greenhouse emissions. Further, as a multiple output land use system, improved fallows may increase fodder availability during dry periods and provide substantial biomass for charcoal production. These livelihood options may become important financial safety nets during off seasons or in the event of crop failures. This notwithstanding, the adoption of improved fallows is mainly in Southern and Eastern Africa, where over 20,000 farmers are now using Sesbania sesban, Tephrosia vogelii, and Cajanus cajan in two-year fallows followed by maize rotations. Land tenure issues, lack of social capital, and improved germplasm and accessions of fallow species have been cited as constraints to scaling up. However, development of seed orchards, nursery development, and the willingness of policy makers to create a policy environment that addresses market failures and alleviates disincentives should improve adoption and future scaling up.

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Toward climate-smart agriculture in West Africa: a review of climate change impacts, adaptation strategies and policy developments for the livestock, fishery and crop production sectors

Abstract: Journal articleIFPRI3; CRP7; DCA; A Ensuring Sustainable food production; E Building ResilienceEPTDPRCGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS

Cited by 154 publications

References 36 publications

Projected Heat Stress Under 1.5 °C and 2 °C Global Warming Scenarios Creates Unprecedented Discomfort for Humans in West Africa

Projected Heat Stress Under 1.5 °C and 2 °C Global Warming Scenarios Creates Unprecedented Discomfort for Humans in West Africa

The Developing World’s Contribution to Global Warming and the Resulting Consequences of Climate Change in These Regions: A Nigerian Case Study

Why Promote Improved Fallows as a Climate-Smart Agroforestry Technology in Sub-Saharan Africa?

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