Climate Change Publications

× This publication-a joint effort by the International Food Policy Research Institute (IFPRI) and the Inter-American Institute for Cooperation on Agriculture (IICA)-is being released in the context of growing changes and fragmentation in global economic and trade relationships. Countries are increasingly adopting protectionist measures in response to recent crises and the decreased competitiveness of value chains, due to rising production, marketing and transportation costs. The complex multilateral trade system and the urgent need to implement concrete actions in this area are prompting countries to work towards the adoption of new standards that aim to protect and preserve the environment but could also become barriers to trade that impose a significant economic and social cost on other countries. The countries of the Americas must continue to support efforts to strengthen the multilateral trade system, ensuring that it is open, transparent and science-based, as well as to effectively participate in discussion forums such as the ministerial conferences of the World Trade Organization (WTO). Amidst this scenario, international trade plays a vital role in transforming food systems, by interconnecting them and contributing to creating a more sustainable global food system. In recent years, the growth of production and exports has converted Latin America and the Caribbean (LAC) into the largest net food exporting region in the world. On average, agrifood exports from the region in 2021-2023 accounted for 17% of global agrifood exports, representing one fourth of total exports from the region. During that period, LAC agrifood exports grew by 7.6%. Yet, it bears mentioning that, despite its important role, the region has its share of challenges. During 2023, 85% of LAC agrifood exports were directed at external markets and 53% of the value of exported agrifood exports was concentrated among only 10 products. This demonstrates the region’s significant vulnerability and is undoubtedly a challenge that must be addressed. This document is an inter-institutional effort to share ideas and reflections on the main issues to be tackled building on the 13th WTO Ministerial Conference. We hope that it will serve as input in strengthening the participation of the countries of the Americas in WTO multilateral negotiations, while also highlighting the key role of agricultural trade in agrifood system transformation.

× The 2024 edition of the Annual Trends and Outlook Report (ATOR) explores the challenges posed by the climate crisis to agrifood systems and the opportunities offered by a transition to a bioeconomy to mitigate and adapt to the adverse impacts of climate change. This ATOR seeks to support the ongoing development and the subsequent implementation of a new 10-year Comprehensive Africa Agriculture Development Programme (CAADP) strategy by the African Union through the renewed and updated post-Malabo CAADP agenda.

× I n an era when the impacts of climate change are becoming increasingly pronounced, understanding and mitigating climate risk is paramount, especially for regions highly vulnerable to environmental change. Africa, with its rich biodiversity and varied climates, stands on the front line, facing unique challenges posed by climate change and climate variability. The continent’s susceptibility around climate change is not just a matter of environmental concern but a multifaceted issue affecting socioeconomic development, agricultural sustainability, and the overall well-being of its inhabitants. The imperative to assess, comprehend, and adapt to these risks is more critical now than ever, necessitating a detailed analysis of various climate-related parameters and their long-term implications.

× This publication-a joint effort by the International Food Policy Research Institute (IFPRI) and the Inter-American Institute for Cooperation on Agriculture (IICA)-is being released in the context of growing changes and fragmentation in global economic and trade relationships. Countries are increasingly adopting protectionist measures in response to recent crises and the decreased competitiveness of value chains, due to rising production, marketing and transportation costs. The complex multilateral trade system and the urgent need to implement concrete actions in this area are prompting countries to work towards the adoption of new standards that aim to protect and preserve the environment but could also become barriers to trade that impose a significant economic and social cost on other countries. The countries of the Americas must continue to support efforts to strengthen the multilateral trade system, ensuring that it is open, transparent and science-based, as well as to effectively participate in discussion forums such as the ministerial conferences of the World Trade Organization (WTO). Amidst this scenario, international trade plays a vital role in transforming food systems, by interconnecting them and contributing to creating a more sustainable global food system. In recent years, the growth of production and exports has converted Latin America and the Caribbean (LAC) into the largest net food exporting region in the world. On average, agrifood exports from the region in 2021-2023 accounted for 17% of global agrifood exports, representing one fourth of total exports from the region. During that period, LAC agrifood exports grew by 7.6%. Yet, it bears mentioning that, despite its important role, the region has its share of challenges. During 2023, 85% of LAC agrifood exports were directed at external markets and 53% of the value of exported agrifood exports was concentrated among only 10 products. This demonstrates the region’s significant vulnerability and is undoubtedly a challenge that must be addressed. This document is an inter-institutional effort to share ideas and reflections on the main issues to be tackled building on the 13th WTO Ministerial Conference. We hope that it will serve as input in strengthening the participation of the countries of the Americas in WTO multilateral negotiations, while also highlighting the key role of agricultural trade in agrifood system transformation.

× There is growing interest in Sub-Saharan Africa for substituting maize with climate-smart crops like sorghum and millets in local food processing. We conducted a survey to explore current variations in processing and consumption practices for Mahewu, a traditionally fermented cereal beverage from Zimbabwe. Processing involved cooking a cereal porridge, adding cereal flour or malt as a starter ingredient, and fermenting for 12–48 h. Ingredient availability was the main driver for porridge ingredient choice (42% of respondents) with the most preferred being maize (55% of respondents), pearl millet (22%) and sorghum (9%). Final product taste had the most influence on starter ingredient choice, with most respondents preferring pearl millet flour (23%), finger millet malt (22%), wheat flour (17%), and sorghum malt (13%). Our study proves that maize can be replaced with sorghum and millet in Mahewu processing, thus increasing the climate-resilience of future food systems, and demonstrates that traditional practices harbour clues for adapting current practices.

× Climate change, poverty, and low environmental education have contributed to increasing vulnerability of poor farmers in Mali. This study was done to determine the impact of low-cost adaptation strategies on resilience and welfare. We analyzed the impact of a World Vision project which promoted climate-smart agricultural (CSA) practices in Mali from 2016-2019. We identified the impact using a two-stage weighted regression (2SWR). Results show that the World Vision Project significantly increased the adoption of Farmer-Managed Natural Regeneration (FMNR) practice and eventually crop yield. These intermediate impacts were translated into a significant reduction in food and nutrition insecurity and an increase in household income. The impacts of the project on child health were especially greater for farmers who participated in the project for a longer time. However, the project did not have a significant impact on the adoption of a combination of CSA practices – which could have enhanced the effectiveness of the FMNR practice. The results suggest the need for future interventions to emphasize the promotion of complementary CSA practices, which significantly increases returns to farmer investments.

× Agriculture sector is major sufferer of climate change both at a global level as well as at India level. Cereals account for about 92 % of India's total food grain output and climate change has a significant influence on the production of cereals. This study aimed to evaluate the long-term and short-term effects of climatic and non-climatic variables, specifically temperature, precipitation, cereal area, total cropped area, fertilizer consumption, and pesticide consumption, on cereal production in India. The study included annual time series data that covered the period from 1960 to 2018, covering a period of 58 years. Various econometric techniques were employed to examine these relationships. The validity of a long-term and short-term relationship among the relevant variables included in the study was validated by employing the Autoregressive Distributed Lag (ARDL) technique and the Johansen cointegration test. The ARDL model's estimation outcomes reveals that input factors such as cereal area became a key factor in rising cereal production, as evidenced by its positive coefficient. Similarly, fertilizer consumption and precipitation had positive effects on production in the long run whereas total cropped area and minimum temperature has little influence over the results of production both in short run as well as long run. Furthermore, the long-term findings were also supported using econometric tools like Canonical Cointegrating Regression (CCR) and Fully Modified Least Squares (FMOLS). These methods confirmed that variations in cereal production in India were significantly influenced by both climatic factors and agricultural inputs and factors. The study emphasizes the urgency for policymakers to prioritize proactive measures aimed at reducing the adverse impacts of climate change on cereal production in India. This necessitates a comprehensive strategy integrating sustainable practices, technological innovations, and robust policy frameworks to ensure resilient agricultural sectors and sustainable food production.

× Context Semi-arid regions are one of the most vulnerable regions of climate change to agriculture. Karnataka, a semi-arid state of India has warmed by 0.4 °C with declining trends in average annual rainfall by 10 % over the last century, is highly vulnerable to climate change. To adapt with this climate change impact, Government of Karnataka along with CGIAR institutes and agriculture universities had initiated the Bhoo-Samrudhi program in 2013 to promote climate smart agriculture practices in the state. The primary aim of this program was to enhance crop productivity by 25 % and farmers income by 20 %.

× The new Kenyan government faces a complex domestic and global environment, and it is widely expected to address key food and agricultural challenges with a new set of policies and programs. This policy brief presents key recommendations from a forthcoming book, Food Systems Transformation in Kenya: Lessons from the Past and Policy Options for the Future, which provides research-based “food for thought and action” to support the Kenyan government’s efforts to improve food security.

× Climate change is a significant and growing threat to food security—already affecting vulnerable populations in many developing countries, and expected to affect ever more people in more places, unless action is taken beginning today. Current scenarios for business-as-usual farming under climate change project growing food security challenges by 2050. Worst hit will be underdeveloped regions of the world where food insecurity is already a problem and populations are vulnerable to shocks (Rosegrant et al. 2014). Improvements in agricultural technology and management are expected to increase food security, but if we do not address climate change, climate-related losses in crop and livestock productivity will reduce those gains (Lobell and Gourdji 2012). In this challenging environment, countries will need to contend with shifts in which crops they can best produce, significant changes in global prices, and change in countries’ comparative advantages. New analytical tools that allow policy makers and decision makers to integrate data from the global to the local level offer an important opportunity for countries to identify the most effective ways to address climate change. As the 22nd Conference of the Parties (COP22) gets underway and the role of agriculture as a key element in reducing emissions is widely recognized, countries can use these tools to identify locally appropriate policies that will reduce the impact of climate change on food security over the long term.

× As the population continues to grow and natural resources become scarcer, the need to shift toward an environmen­tally responsible, socially accountable, more equitable, and “greener” economy has become increasingly apparent. Despite differing perspectives and definitions among stakeholders, the “green economy” is often seen as an economy that pursues growth while also promoting sustainable development through more efficient use of resources. Thus aligned with concepts of sustainability, the objective of a green economy is to simultaneously work toward economic development, environmental protection, and greater social welfare, in particular by reducing reliance on fossil fuels and nonrenewable resources.

× Recent trends in food prices—higher levels and higher volatility—mirror trends predicted by a number of experts. Given the complex web of factors influencing global food security, governments of developed and developing countries, as well as international organizations, must use a comprehensive approach to prevent a food crisis reoccurrence. This comprehensive approach should comprise a number of initiatives and reforms; while some of these have been proposed before, their merits are even more relevant today and justify reprioritization and reallocation of national and international budgets. There are 7 main initiatives that governments and institutions should promptly implement. 1. Effective policies and technology investments to minimize food-fuel competition. 2. Social protection, especially social safety nets, for the most vulnerable groups. 3. Transparent, fair, and open global trade. 4. A global emergency physical grain reserve. 5. Policies and investments to promote agricultural growth, in particular smallholder productivity, in the face of climate change. 6. Investments by national governments in climate change adaptation and mitigation using the full potential that agriculture offers. 7. An international working group to regularly monitor the world food situation and trigger action to prevent excessive price volatility.

× Small-scale, resource-poor farmers in developing countries face daily stresses, including poor soils, drought, and lack of inputs. Ongoing trends such as climate change and population growth will likely exacerbate binding stresses. A new generation of genetically engineered (GE) crop research aims to alleviate these pressures through the improvement of subsistence crops-such as cassava, sorghum, and millet-that incorporate traits such as tolerance to drought, water, and aluminum in soils as well as plants with more efficient nitrogen and phosphor use. However, many developing countries lack the necessary biosafety systems for a timely and cost-effective adoption. This brief focuses on the regulatory reforms necessary for farmers and consumers in developing countries to benefit from GE crops.

× Sustainable intensification (SI) of the smallholder sector in Africa south of the Sahara is among the approaches pursued to build resilient food systems that can supply nutritionally adequate food in the face of rapid population growth and climatic changes. This study assesses the impact of Africa RISING, an SI program in Ghana implemented in the poorest and most food insecure areas of the country since 2012. The program first validated and then scaled up a wide range of SI interventions focused on improved agronomic management and crop cultivars; improved livestock feed, housing conditions, and species; crop-livestock integration; integrated natural resource management; vegetable production and nutritional education; and small-scale mechanization. Impact is estimated using two rounds of quasi-experimental panel data (conducted in 2014 and 2020), propensity score matching, and difference-indifferences techniques. The study design allows us to estimate the impact of Africa RISING by comparing outcomes among program beneficiaries with those of two different control groups—one residing in program villages (within village comparison) and another in non-program (control) villages (out-of-village comparison) on several indicators across five SI domains—environment, productivity, economic, human, and social. We also conduct a placebo test comparing non-beneficiaries in the two control groups. Results from panel data analyses show improvements in several indicators in the environmental and productivity domains. We also find a positive impact on use of conservation practices (fallowing, disc/moldboard ploughing, manure), groundnut yield, livestock, net crop income, and women’s likelihood of becoming members of farmers groups relative to non-beneficiaries. We do not find a statistically significant effect on consumption- and asset-based poverty rates, household dietary diversity, and several indicators of maternal and child nutrition. For both beneficiaries and non-beneficiaries, the share of monetary-based non-poor, dietary diversity, and food security have declined between baseline (2014) and follow-up (2020) likely due COVID-19. Our study highlights useful empirical lessons learned for informing future program design and impact assessments.

× Climate change is projected to cause an increase in average temperatures in Zambia and a decline in rainfall, particularly in the southern and western regions. The country experiences high rainfall variability, which climate change is expected to exacerbate, resulting in likely higher frequency and intensity of already reoccurring extreme weather events, such as droughts and floods. The combined effect of the temperature and precipitation projections is anticipated to cause a decrease in water availability at national level and to adversely affect the Zambezi, Kafue, and Luangwa River Basins. Overall, these trends will exacerbate existing vulnerabilities in southwestern Zambia, as the region is already prone to droughts (as well as floods in some parts). On the other hand, the northern parts of the country are projected to experience a slight increase in rainfall and to be overall relatively positively affected by climate change.
The key sectors most likely to be significantly affected by climate change in Zambia include agriculture, road infrastructure, and energy. In agriculture, the key risk stemming from climate change is the projected lower maize yields, as this is the country’s staple crop. Other crops are also expected to be adversely affected by higher temperatures, reduced rainfall, and increased occurrence of extreme events, particularly in southern and western Zambia. That said, changing climate conditions could create new agricultural opportunities in the north. Climate change is projected to negatively affect the livestock subsector, which will increase food security risks, particularly for subsistence farmers. In road infrastructure, the projected higher occurrence of flooding, especially in Lusaka Province, could have a knock-on effect for the rest of the economy, particularly if it damages key international corridors passing through this region and/or affects domestic supply chains. Zambia is significantly reliant on hydropower and is already experiencing severe power cuts due to drought. The risks in the sector are exacerbated by the location of key hydropower plants in the southern parts of the country and the projected drying up of main river basins. The electricity shortages have spillover effects on the rest of the economy, including the copper industry, Zambia’s key export. This has international implications, as Zambia is a top copper producer worldwide, and demand for copper is expected to increase significantly due to its crucial role in various green technologies. Thus, absent adaptation measures, the adverse impact of climate change in Zambia could affect global mitigation efforts and strategies.

× This study evaluates the impact of Africa RISING, a large-scale sustainable intensification (SI) program that has been implemented in Central Malawi’s Dedza and Ntcheu districts beginning in 2012. Using a participatory action research framework, the program validated and promoted alternative SI options including fertilized maize, maize-legume intercropping, intercropping of two compatible legumes, cereal-legume rotation, and double-row planting of legumes. Impact is estimated on several SI indicators and domains using two rounds of panel data and difference-in-differences techniques. The unique study design allowed us to estimate impact by comparing outcomes among program beneficiaries with two different counterfactual groups—one located inside program villages (within village comparison) and another in non-program (control) villages (out-of-village comparison). We also conduct a placebo test comparing non-beneficiaries in the two counterfactual groups. The within-village comparison shows positive impact on several agricultural and economic indicators including access to agricultural information, value of harvest, on-farm diversity, labor productivity, annual net household income, per capita household consumption expenditure, household wealth, commercial orientation, and household dietary diversity score. We do not find a statistically significant impact on human indicators such as child and maternal nutrition. Estimates based on within-village, out-of-village, and placebo comparisons suggest important insights about the challenges in assessing the impact of agricultural programs in general and, specifically, participatory multi-intervention programs in the presence of sample (self-)selection and spillovers. Our study highlights important lessons learned to inform future program design and impact assessments.

× This is a joint IFPRI-WFP study on the drivers, profile, and risks of irregular migration in the West Africa context. By taking a route-based approach to irregular migration in West Africa, the study examined migrants’ origins, their transit experience, and the situation where their journey stalls or ends.
Drawing on a mixed methods approach the study includes case studies in Mali and Libya, representing an analysis of the migration route of the Ténéré desert crossing of the south-central Sahara.
The overall analysis features the profiles of irregular migrants and the primary factors influencing their migration decisions. It also examines links between food insecurity and irregular migration to understand the risks and address the needs of this increasingly vulnerable population.

× The workshop was organized by the CGIAR Research Initiative on Low-Emission Food Systems (MITIGATE+), which is implemented by a large consortium of partners. The Initiative aims to reduce annual global food systems emissions by working closely with key actors in target countries to co-create knowledge that enables them to make evidence-based decisions and address challenges in food systems discourse, policy development, and implementation to reduce greenhouse gas emissions. The Initiative’s partners support the establishment of a multistakeholder platform and a “living lab for people” (LL4P) that will support bottom-up innovation cases to help transform food systems in Nandi county, Kenya, while also reducing greenhouse gas emissions. The workshop was part of a series of stakeholder workshops that aims to help clarify development opportunities, the role of different actors in Nandi county, and their interests. The intention was to bring actors together, invite them to think about a joint vision for food systems in the county, and share perspectives on entry points for initiating system change.

× The nations that signed the Paris Agreement periodically submit Nationally Determined Contributions (NDCs) with climate mitigation and adaptation goals. Complementarily, countries should also formulate and implement National Adaptation Plans (NAP) and periodically update them. This means that every country is required by law to outline a course of action in response to global warming and submit a pledge with specific objectives it is committed to achieving. These pledges are then reviewed and renewed every five years. Every round of pledges is meant to intensify the level of commitment and is negotiable, meaning that other parties can offer concessions or support in return for a more robust pledge. The pledge and review method were introduced first in 1991; however, in 1997, the international community chose to adopt legally binding emission reduction targets in the Kyoto Protocol. The pledge and review methods were reintroduced in the 2009 Copenhagen Accord, following its limited success and the inability to reach an agreement on new targets. The NDC wording took the place of the pledge-and-review expression in the negotiations that resulted in the Paris Agreement.

× The results of the recently released Comprehensive Africa Agriculture Development Programme (CAADP) 4th Biennial Review (BR) report indicate that Africa’s performance in 2023 toward achieving the Malabo Declaration commitments by 2025 has strayed farther away from being on-track. Using a scorecard method to review progress in 58 indicators that represent the commitments, previous BR reports show that the number of countries assessed to be on-track to achieve the commitments has dwindled over time, from twenty in 2017 to four in 2019 and only one in 2021. In the 4th BR in 2023, none of the 49 participating countries was on on-track. This seems to conflict with evidence of positive trends in other continent-level reports on related development indicators. According to the African Economic Outlook for example, the contribution of agriculture to overall economic growth in Africa has remained stable, especially as growth in the services and industry sectors has been irregular—and even negative in 2020 due to the COVID-19 pandemic. The latest editions of the Africa Agriculture Trade Monitor, Africa Agriculture Status Report, and Annual Trends and Outlook Report5 also show substantial progress in terms of expansion of agricultural investments, trade, and growth and improvement in poverty and nutrition outcomes, amid challenges associated with the pandemic, climate change, conflicts, and epidemics such as the locust and fall armyworm infestations. The BR scoring method and data have some issues that contribute to the seemingly worsening performance.

× Over the past decades, climate change has brought about numerous detrimental consequences for agricultural production in many countries, posing a substantial challenge to the economic well being of farmers while affecting national and international economies. Meteorological data specifically indicates that extreme weather events are occurring with unprecedented frequencies, intensities, and durations. This includes events associated with variations in the El Niño – Southern Oscillation of ocean currents, such as unusually dry weather in June through August in Nepal and other parts of South Asia. For example, during the El Niño year of 1992, a particularly severe drought occurred in Nepal, contributing in part to a 17.7 percent fall in rice production relative to the prior trend. Current indications are that another El Niño – related drought may already be underway in 2023 and into 2024. With the extreme weather events, global economies have experienced a number of recent shocks – for example those associated with the COVID-19 pandemic and conflicts in countries such as the Ukraine and Russia that are important exporters of agricultural inputs and goods. As such, this research note explores the implications of a range of agricultural productivity shocks including but not limited to those resulting from a possible El Niño-related drought in 2023 and extending into early 2024 (coinciding with the monsoon and post-monsoon seasons).

× Intervention Context: WFP’s activities in Burkina Faso and Niger focus on fragile agrarian communities in the Sahel, where cyclical floods and droughts combine with decreasing soil fertility and increasing desertification, among other challenges, to aggravate food and livelihood insecurity. Increased competition for land for food crops and pastures as well as water for domestic, productive, and livestock use, intensify conflicts over ownership and usage rights for land and the commons such as forests. in particular, this competition has heightened conflicts between farmers and herders. Layered on these localized conflicts are recent increases in human safety and security concerns related to the spread of attacks by violent extremist groups across the eastern flanks of both countries. The increasing frequency and intensity of these attacks have led to the loss of lives, property, and the displacement of large groups of people. The attendant deepening of food, livelihood, and human insecurities has contributed to a rural exodus of men and women to cities and other economic enclaves in search of alternate sources of food and income. The arrival of displaced persons fleeing the attacks has increased pressure on already limited food stocks and other assets of host communities. COVID-19 added another layer of vulnerability. In addition to the disease burden, lockdowns and restrictions on the movement of persons affected the ability of communities to travel to engage in nonfarm economic activities for supplementary income and food. This greatly affected the food and livelihood security systems of the populations in these already impoverished and fragile communities.

× This paper provides a diagnostic of Rwanda’s food systems and the policy landscape that shapes it. It aims to inform national and local conversations on Rwanda’s food systems transformation—an idea that has attracted considerable attention in national consultations conducted in the run-up to the United Nations Food Systems Summit in September 2021, at the summit itself, and in the post-summit actions that Rwanda is now pursuing.
A food system comprises the full range of actors and activities originating from agriculture, livestock, forestry, or fisheries, as well as the broader economic, societal, and natural environments in which they operate. An inclusive and sustainable food systems transformation is a process of growth and development that is profitable for the full range of individual actors engaged in the system, beneficial for society including marginalized and vulnerable groups, and advantageous for the natural environment.
Rwanda’s journey towards a food systems transformation is well captured in Vision 2050, the National Strategy for Transformation (NST 1), and strategic plans for sectors such as agriculture, health, nutrition, commerce, and the environment. Their priorities are echoed in ongoing programs and investments of the government, its development partners, the private sector, and civil society.
Nonetheless, there are still challenges facing Rwanda’s efforts to sustain and accelerate progress along this journey. Efforts to overcome these challenges call for a deeper and more significant shift in thinking—informed by the food systems perspective—that is highlighted by stronger multi-sectoral approaches to problem-solving.
Overall findings suggest an opportunity for a tangible shift in how public policy in Rwanda approaches its food systems and how the systems contribute to the broader national transformation process. This means addressing how balances are struck—and tradeoffs are managed—between and among agriculture, nutrition, health, and the environment in the face of a climate crisis. It also means giving greater attention to the demand-side drivers in Rwanda’s food system, recognizing that singularly focused supply-side strategies rarely succeed in isolation. Finally, it means deepening the integration of policies and policy actors in the design and implementation phases of interventions that shape the food system.
We offer several recommendations to translate abstract ideas into a coherent and focused set of actions in the policy space.
1. Strengthen existing entities and mechanisms rather than create new ones.
2. Develop a national food systems transformation strategy that is integrative, multi-sectoral, and action-oriented.
3. Innovate on existing programs.
4. Allow for learning through both success and failure.
5. Invest in rigorous impact evaluation.
These actions aim to strengthen the policy environment that enables a truly broad-based food systems transformation. This enabling environment is itself an outcome of broad-based national conversations, integration across sectors, domains, and levels; and the encouragement of policy and program innovation.