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Theme: Climate adaptation and mitigation

Climate change threatens to reduce global crop production, and poor people in tropical environments will be hit the hardest. More than 90% of CIMMYT’s work relates to climate change, helping farmers adapt to shocks while producing more food, and reduce emissions where possible. Innovations include new maize and wheat varieties that withstand drought, heat and pests; conservation agriculture; farming methods that save water and reduce the need for fertilizer; climate information services; and index-based insurance for farmers whose crops are damaged by bad weather. CIMMYT is an important contributor to the CGIAR Research Program on Climate Change, Agriculture and Food Security.

The world must act to avert a climate-induced food shortage, cautions Cary Fowler. CIMMYT has a strategy to strengthen agrifood systems.

Erratic climate patterns, global and regional conflicts, biodiversity degradation, and insufficient funding for agricultural research pose a serious risk to meeting global food production goals by mid-century, according to Cary Fowler, the U.S. special envoy for food security. 

The world must produce 50-60% more food by 2050 to nourish a growing population. Yet global crop yields are projected to drop between 3-12% over the same period. Wheat yields in Africa and South Asia, two regions with the fastest growing and youngest populations, are expected to decline by 15% due to global warming. Food systems have also been disrupted by the Russia-Ukraine conflict and the COVID-19 pandemic, raising food and fertilizer prices, and exacerbating regional instability.   

Maize vendor at village market in Arsi Negele, Ethiopia. (Photo: Peter Lowe/CIMMYT)

Fowler cites inadequate government funding for plant breeding programs as a contributor to an ineffective response to introducing improved climate-adaptable staple crops. “With the state of current affairs, we are on our way to failing to feed the world by century’s end,” said Fowler.  

Science and Innovation for a Food and Nutrition Secure World: CIMMYT’s 2030 Strategy 

Global peace and development efforts will demand a cross-sector and coordinated response. Through its 2030 Strategy, CIMMYT has laid out a robust series of investments in crop systems innovation, partnership, and sustainable development, to advance more resilient food systems. The 2030 Strategy consolidates CIMMYT’s target areas through three pillars: Discovery, SystemDev, and Inc. These pillars focus on research and innovation, systems approach, and strong partnerships and advocacy efforts with the private and government sectors to address an emerging food crisis. 

“Our 2030 Strategy places research, innovation and partnership at the center of facing the challenges of the 21st century to solve tomorrow’s problems today—for greater food security and the prosperity of smallholder farmers. As we implement work plans, CIMMYT is proud of the achievements it has seen through projects in sub-Saharan Africa, our contribution to influential policy reports, and continued praise for our agri-development initiatives in Latin America. All these feats will help us deliver on and expand our efforts to reach our 2030 vision,” said Bram Govaerts, CIMMYT director general.  

CIMMYT remains prominent in developing sustainable solutions for farmers and policy actors  

CIMMYT has achieved important progress in Eastern and Southern Africa. Projects such as the Southern Africa Accelerated Innovation Delivery Initiative (AID-I) Rapid Delivery Hub have brought together regional seed partners, government agencies, and CGIAR Research Centers, to reduce fertilizer prices, boost resilience to drought and pests, and facilitate market access for smallholders.  

In the recent SPG Coalition report, CIMMYT featured prominently as a leading organization in climate-smart agriculture, nutrient-use efficiency, and pest and fertilizer management. This report informs researchers, non-governmental organizations and private sector partners in agrifood and climate policy development.  

A CIMMYT staff member gives a farmer training session in Boiragee, Bangladesh. (Photo: S. Mojumder Drik/CIMMYT)

MasAgro, a research-for-development initiative, has received praise by international organizations and governments as an exemplary program for sustainable development in Latin America. Over 500,000 farmers in Mexico have adopted hardy maize or wheat varieties and resource-conserving agricultural practices. To maximize on the experience of MasAgro, CIMMYT has partnered with a CGIAR initiative: AgriLAC Resiliente. This initiative aims to bolster the competitiveness and sustainability of agrifood systems to respond to forced migrations in Central and South America which are worsened by regional food insecurity and conflict.  

Science and innovation powered by partnership can deliver a food secure world  

Climate change undoubtedly threatens global peace and agrifood systems. With over 130 countries depending on food imports, today’s hyper-connected world demands collaborative partnership across all sectors to build up shockproof food systems. Through a grassroots approach to research and innovation, the CIMMYT 2030 Strategy is built upon decades of applied science which has impacted communities around the world, to continue influencing policy, pioneering innovations, and advocating for the development of a food secure future.  

LIPS-Zim empowers smallholder farmers

The Livestock Production Systems in Zimbabwe (LIPS-Zim) project implemented by CIMMYT and various research institutions in partnership with the government expects to increase incomes and ensure food security for more than 50,000 rural Zimbabweans.

Read the full story.

 

Catalyzing smallholder farming in Mexico

Scientists from CIMMYT, founded in Mexico in 1966, have pursued decades of participatory research with Mexico’s smallholder maize farmers to improve their local varieties for traits like yield and insect resistance, while preserving their special grain quality, as well as testing and promoting zero-tillage and other resource-conserving farming practices.

Farmer Maria Luisa Gordillo Mendoza harvests a plot of maize grown with conservation agriculture techniques in her field in Nuevo México, Chiapas. (Photo: Peter Lowe/CIMMYT)

Smallholder farm operations account for more than 80% of all farms worldwide and produce roughly 35% of the world’s food, according to FAO census data and follow-up studies.

An estimated two-thirds of the Mexico’s farmers are smallholders, typically working challenging agroecologies scattered across the country’s mountainous terrain and applying generations-old subsistence practices to grow low-yielding local maize varieties.

Ancient milpa multicropping systems can lift up the present and future

The milpa intercrop — in which maize is grown together with beans, squash, or other vegetable crops — has a millennial history in the Americas and can furnish a vital supply of food and nutrients for marginalized, resource-poor communities.

One hectare of a milpa comprising maize, common beans, and potatoes can provide the annual carbohydrate needs of more than 13 adults, enough protein for nearly 10 adults, and adequate supplies of many vitamins and minerals, according to a CIMMYT-led study in the western highlands of Guatemala, an isolated and impoverished region, reported in Nature Scientific Reports in 2021.

But milpas are typically grown on much smaller areas than a hectare, so households cannot depend on this intercrop alone to satisfy their needs. A solution? Customized milpas that merge farmers’ age-old wisdom and practices with science-based innovation.

An example is planting fruit trees — guava, avocado, mango, peaches, or lime among others — among milpa crops in lines perpendicular to hill slopes. The practice was tested and promoted in the Los Tuxtlas region of the state of Veracruz by Mexico’s National Institute of Forestry, Agriculture, and Livestock Research (INIFAP) and the Colegio de Postgraduados (ColPos) and has been refined by farmers in other areas through CIMMYT-led innovation networks.

Planted milpa crops in lines perpendicular to the slope on a steep hillside in Chiapas, Mexico. (Photo: Peter Lowe/CIMMYT)

In Los Tuxtlas the practice provided added income and nutrition, dramatically reduced erosion, improved land and water-use efficiency by around 50%, and boosted soil health and fertility.

In the state of Puebla and other parts of South and southwestern Mexico, milpa-fruit tree intercrops have worked well on steep hillsides. In the state of Oaxaca, for example, versions of the practice have notably improved farming by indigenous communities in the Mixe and Mazateca regions, supported by outreach of the Mexican Agency for the Sustainable Development of Hillsides (AMDSL), a partner in a CIMMYT research hub in the region.

Research by AMDSL and CIMMYT on smallholder plots in two Oaxaca municipalities where farmers have been combining milpas with peach and avocado production and conservation agriculture practices for more than a decade found that cropping diversification, together with use of zero tillage and keeping crop residues on the soil rather than removing or burning them, raised total yearly crop outputs by as much as 1.7 tons per hectare and reduced farmers’ risk of catastrophic crop losses due to droughts or other climate extremes.

Blue maize pleases diners and delivers profits

Farmers’ local maize varieties yield less than hybrids but are still grown because they provide ideal grain quality for traditional foods, as well as marketable stalks and leaves to feed farm animals and maize husks for wrapping tamales, to name a few products.

Building on longstanding partnerships with INIFAP and the Autonomous University of Chapingo (UACh) to improve local varieties and preserve maize genetic diversity in Mexico, CIMMYT breeders have recently developed improved blue maize hybrids and open-pollinated varieties.

Sought by restauranteurs worldwide for its flavor and beauty, blue maize grain normally comes from native varieties grown by smallholder farmers on small plots with low yields and variable quality.

The new CIMMYT varieties are derived from traditional Guatemalan, Mexican, and Peruvian landraces and feature higher yields, more consistent grain quality, and enhanced resistance to common maize diseases, offering smallholders and other Mexican farmers a profitable product for the country’s booming restaurant industry and for export chains.

Selection of corn varieties for the state of Morelos, Mexico. (Photo: ACCIMMYT)

Parental inbred lines of the new hybrids have been distributed to private and public partners, who are developing their own hybrids and OPVs in Mexico. CIMMYT continues to test the new hybrids under various farming systems to ensure they produce stable yields when grown in farmers’ fields.

Data driven extension

Using cutting-edge data systems, CIMMYT has leveraged information from nearly 200,000 plots representing more than 26,000 hectares across diverse agroecologies to offer Mexican farmers — including smallholders — site-specific recommendations that make their farming systems more productive, resilient, and sustainable. The initiative was supported by MasAgro, an integrated development partnership of Mexico and CIMMYT during 2010-21 and funded by Mexico’s Secretariat of Agriculture and Rural Development (SADER).

Smallholder Mexican farmers adopt resource-conserving innovations: slowly and in bits

Small-scale farmers in Mexico often adopt conservation agriculture innovations gradually and piecemeal, to fit their diverse agroecological and socioeconomic contexts and risk appetites, according to studies and the on-farm experience of CIMMYT.

Research and extension efforts need to consider this in work with smallholders, said Santiago Lopez-Ridaura, a CIMMYT specialist in agricultural systems and climate change adaptation.

“Farmer practices typically involve heavy tillage before seeding, growing maize as a monocrop, and removing crop residues after harvest for use as forage,” explained Lopez-Ridaura. “Full-on conservation agriculture (CA) is a radical shift, requiring farmers to reduce or eliminate tillage, keep a permanent cover of crop residues on the soil, and diversify the crops they grow. It can support more intense yet environmentally friendly farming, reducing erosion, improving soil fertility and water filtration, boosting crop yields, and saving farmers money. However, it also requires purchasing or contracting specialized sowing implements and fencing fields or agreeing with neighbors to keep livestock from eating all the residues, to name just a few changes.”

Conserving crop residues favors production systems and provides various benefits. (Photo: Simon Fonteyne/CIMMYT)

Lopez-Ridaura and colleagues published a 2021 analysis involving farmers who grew maize and sorghum and keep a few livestock on small landholdings (less than 4 hectares), with limited mechanization and irrigation, in the state of Guanajuato, Central Mexico.

They found that scenarios involving hybrid maize plus a legume crop with zero-tillage or keeping a residue mulch on the soil provided an average net profit of some US $1,600 (MXP 29,000) per year, in addition to ecological benefits, added forage, and more stable output under climate stress.

“Using a modeling framework from Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO) that combines bioeconomic simulation, risk analysis, adoption theory, and impact assessment, we not only confirmed the worth of conservation agriculture but found that disaggregating CA into smaller component packages and including a more productive crop and variety were likely to increase farmers’ adoption, in riskier settings.”

Advancing more sustainable farming in Mexico

Conservation agriculture can generate substantial economic and environmental benefits under marginal conditions, particularly by enhancing climate change resilience, increasing soil organic matter, and retaining soil moisture. In Central Mexico dryland maize yields rose by 38-48%, after 10 years of implementing CA.

CIMMYT’s multi-crop, multi-use zero tillage seeder at work on a long-term conservation agriculture (CA) trial plot, left, at the center’s headquarters at El Batán, Mexico. (Photo credit: CIMMYT)

CIMMYT has studied and promoted zero-tillage for maize and other resource-conserving practices in Mexico for more than three decades, but efforts to spread sustainable farming and use of improved maize and wheat varieties redoubled thanks to MasAgro, a research initiative led by the Center and supported by the government of Mexico during 2010-21. Testimonials such abound of Mexican smallholder farmers who have adopted and benefited from CA practices through CIMMYT and national partners’ efforts in MasAgro and other initiatives.

  • Looking to lower his farm costs without losing output, wheat and oil crop farmer Alfonso Romo of Valle de Mayo, state of Sonora, began practicing CA in 2010. “We’ve learned a lot and this year (2022) we obtained the same yields as we used to get through conventional practices but, following more sustainable farming methods, with a 30 and even 40% savings in fertilizer.”
  • With CA practices he adopted in 2018 through MasAgro, maize farmer Rafael Jacobo of Salvatierra, state of Guanajuato, obtained a good crop despite the late dispersal of irrigation water. Seeing his success and that of other nearby farmers, neighbor Jorge Luis Rosillo began using CA techniques and has noticed yearly improvements in his soil and yields. “I did everything the technicians recommended: keeping the residues on the soil and renewing only the sowing line on soil beds…. There are lots of advantages but above all the (cost) savings in land preparation.”
The Milpa Sustentable project in the Yucatan Peninsula is recognized by the UN as a world example of sustainable development. (Photo: CIMMYT)
  • Farmers in the Milpa Sustentable project in the Yucatán Peninsula have improved maize yields using locally adapted CA methods, in collaboration with the Autonomous University of Yucatán. Former project participant Viridiana Sei said she particularly liked the respectful knowledge sharing between farmers and project technicians.
  • CA practices have allowed more than 320 women farmers in the Mixteca Region of the state of Oaxaca to provide more and better forage for the farm animals they depend on, despite drought conditions, through the Crop and Livestock Conservation Agriculture (CLCA) project supported by the International Fund for Agricultural Development (IFAD). According to farmer María Martínez Cruz, “… it hasn’t rained much and everything’s dry, but our verdant oat crop is allowing us to keep our farm animals fed.”
  • With CLCA support and facing Mexico’s increasingly fickle rainy season, farmer Mario Guzmán Manuel of San Francisco Chindúa village in Oaxaca began using CA and says he’ll never go back to the old practices. “We used to do as many as two harrow plowings to break up the soil, but if we leave the residues from the previous crop, they hold in the soil moisture more effectively. People hang onto the old ways, preferring to burn crop residues, but we should understand that this practice only deprives the soil of its capacity to produce.”

A Mexican farm research program gains praise and interest for use abroad

Leveraging the leadership, science, and partnerships of the Mexico-based CIMMYT and the funding and research capacity of Mexico’s Secretariat of Agriculture and Rural Development (SADER) during 2010-21, the program known asMasAgro” has helped up to 500,000 participating farmers to adopt improved maize and wheat varieties and resource-conserving practices on more than 1 million hectares of farmland in 30 states of Mexico.

Tlaltizapan Experimental Station in Morelos, Mexico is used through the winter for drought and heat trials and through the summer for yield-trials and biofortification. (Photo: Alfonso Cortés/CIMMYT)

As a result of MasAgro research hubs operating across Mexico’s multiple and diverse agroecologies to promote the sustainable intensification of maize and wheat farming systems — including improved varieties and resource-conserving, climate-smart practices — yields of project participants for maize were 20% higher and for wheat 3% higher than local averages. Similarly, average net incomes for participating maize farmers were 23% greater and 4% greater for wheat farmers, compared to local averages.

The MasAgro biodiversity component gathered and analyzed one of the world’s largest-ever samplings of maize and wheat genetic diversity, including CIMMYT’s own vast seed bank collections, to help identify and characterize new genes of interest for breeding. As one result, more than 2 billion genetic data points and over 870,000 data entries from associated field trials are freely available to the scientific community, via the project’s online repository.

MasAgro has involved national and local research organizations, universities, companies, and non-government organizations working through more than 40 research platforms and 1,000 demonstration modules, while building the capacity of thousands of farmers and hundreds of technical and extension experts who serve them.

State-level partners sign on to MasAgro

Through MasAgro, CIMMYT entered into research and development partnerships with 12 Mexican states. An example is the mountainous, central Mexican state of Guanajuato, home to the El Bajío region, one of Mexico’s most productive farm areas but which also suffers from soil degradation, water scarcity, and climate change effects — challenges faced by farmers throughout Mexico. The governor of Guanajuato visited CIMMYT headquarters in Mexico in June 2023 to review progress and agree on follow-up activities.

MasAgro generated more sustainable production and irrigation systems in Guanajuato, Mexico. (Photo: ACCIMMYT)

CIMMYT has worked with Guanajuato state and local experts and farmers themselves to test and promote innovations through 7 research platforms reaching nearly 150,000 hectares. As of 2020, new crop varieties and resource-conserving, climate-smart management practices had helped underpin increases of 14% in irrigated wheat production and, under rainfed farming systems, improved outputs of 28% for beans, 150% for local maize varieties and 190% for hybrid maize, over state averages.

An integral soil fertility initiative has included the analysis and mapping of more than 100,000 hectares of farmland, helping Guanajuato farmers to cut costs, use fertilizer more effectively, and reduce the burning of crop residues and associated air pollution.

Service centers for the rental and repair of conservation agriculture machinery are helping to spread practices such as zero tillage and residue mulches. Supported by CIMMYT advisors, Guanajuato farmers are entering into equitable and ecologically friendly production agreements with companies such as Nestle, Kellogg’s, and Heineken, among other profitable and responsible public-private arrangements.

Acclaim and interest abroad for MasAgro

MasAgro has received numerous awards and mentions as a model for sustainable agricultural development. A few examples:

Dignitaries applaud MasAgro launch at CIMMYT. (Photo: Xochiquetzal Fonseca/CIMMYT)
  • The Inter-American Development Bank (IDB) mentioned the program as an example of successful extension.
  • The Organization for Economic Cooperation and Development (OECD) cited MasAgro for promoting productive and sustainable agriculture.
  • The United Nations Development Program (UNDP) lauded MasAgro for promoting climate-resilient agriculture.
  • During the 2018 G20 summit in Argentina, MasAgro was considered a model for coordinating agricultural research, development, innovation, technology transfer, and public-private partnerships.
  • Bram Govaerts, now Director General of CIMMYT, received the 2014 Norman Borlaug Field Award for his work at the time as leader of MasAgro’s farmer outreach component.
  • MasAgro research hubs were recently used as a guide by USAID for efforts in Sudan and Eastern Africa. They have also been replicated in Guatemala and Honduras.

Moving out and beyond

In Central America and Mexico, the inter-connected crises of weak agri-food systems, climate change, conflict, and migration have worsened, while small-scale farmers and marginalized sectors remain mired in poverty.

Capitalizing on its experience in MasAgro, CIMMYT is a major partner in the recently launched CGIAR initiative, AgriLAC Resiliente, which aims to build the resilience, sustainability, and competitiveness of agrifood systems and actors in Latin America and the Caribbean, helping them to meet urgent food security needs, mitigate climate hazards, stabilize vulnerable communities, and reduce forced migration. The effort will focus on farmers in Colombia, El Salvador, Honduras, Mexico, Nicaragua, and Peru.

Farmer Marilu Meza Morales harvests her maize in Comitán, Mexico. (Photo: Peter Lowe/CIMMYT)

As described in a 2021 science journal article, CIMMYT also helped create the integrated agri-food system initiative (IASI), a methodology that was developed and validated through case studies in Mexico and Colombia, and leverages situation analysis, model predictions, and scenarios to synchronize public and private action toward sustainable, equitable, and inclusive agri-food systems.

“CIMMYT’s integrated development approach to maize system transformation in Mexico and Colombia laid the foundations for the IASI methodology by overcoming government transitions, annual budget constraints, and win-or-lose rivalries between stakeholders, in favor of equity, profitability, resilience and sustainability,” said Govaerts.

The 2021 Global Agricultural Productivity (GAP) report “Strengthening the Climate for Sustainable Agricultural Growth” endorsed IASI, saying it “…is designed to generate strategies, actions and quantitative, Sustainable-Development-Goals-aligned targets that have a significant likelihood of supportive public and private investment.”

SPG Coalition: CIMMYT is a leading organization for climate-smart agriculture, nutrient-use efficiency, and pest and fertilizer management

The Coalition on Sustainable Productivity Growth for Food Security and Resource Conservation (SPG Coalition) brings together researchers, non-governmental organizations, and private sector partners to advance a world with greater access to nutritious food and affordable diets. The Coalition recognizes that increasing the productivity of natural resources through climate adaptation and mitigation is instrumental to reaching this goal.

In a recent report, the SPG Coalition provides a path forward for NGOs, research institutions, and government agencies to strengthen agrifood and climate policies. The report contains real-life, evidence-based examples to further the sustainable production and conservation of natural resources, detailing the potential impacts on social, economic, and environmental conditions.

CIMMYT features prominently in the report as a leading organization focused on 4 main areas: climate-smart agriculture, nutrient-use efficiency (NUE), and pest and fertilizer management.

Nutrient-use efficiency and fertilizer management

While chemical fertilizers increase crop yields, excessive or improper use of fertilizers contributes to greenhouse gas emissions (GHG) and increases labor costs for smallholders. Efficient NUE is central to nutrient management and climate change mitigation and adaptation.

Women using spreader for fertilizer application. (Photo: Wasim Iftikar/CSISA)

In India, CIMMYT, along with the Borlaug Institute for South Asia (BISA), CGIAR Research Centers, and regional partners, tested digital tools like the Nutrient Expert (NE) decision support tool which measures proper fertilizer use for optimized yields and provides nutrient recommendations based on local soil conditions.

The majority of smallholders who applied the NE tool reported higher yields while emitting less GHG emissions by 12-20% in wheat and by around 2.5% in rice as compared with conventional fertilization practices. Farmers also recorded double economic gains: increased yields and reduced fertilizer costs. Wider government scaling of NE could enhance regional food security and mitigate GHG emissions.

The Feed the Future Nepal Seed and Fertilizer (NSAF) project, led by CIMMYT and USAID, advocates for climate-smart agriculture by linking smallholders with improved seed, providing capacity-building programs, and promoting efficient fertilizer use. With a vast network established with the support from the Government of Nepal, NSAF successfully provides smallholders with expanded market access and nutritious and climate-resilient crop varieties.

Climate-smart maize breeding 

Since its arrival to sub-Saharan Africa (SSA) in 2016, fall armyworm (FAW) has devastated maize harvests for countless smallholders on the continent. Economic uncertainty caused by unstable yields and climate stressors like drought coupled with this endemic pest risk aggravating food insecurity.

Fall armyworm. (Photo: Jennifer Johnson/CIMMYT)

CIMMYT and NARES Partner Institutions in Eastern and Southern Africa are spearheading a robust pest management project to develop, screen, and introduce genetically resistant elite maize hybrids across SSA. South Sudan, Zambia, Kenya, and Malawi have already deployed resistant maize varieties, and eight other countries in the region are projected to release their own in 2023. These countries are also conducting National Performance Trials (NPTs) to increase awareness of host plant resistance for the sustainable control of FAW and to sensitize policymakers on accelerating the delivery of FAW-tolerant maize varieties.

The establishment of FAW screening facilities in Africa permits more rapid detection and breeding of maize varieties with native genetic resistance to FAW, facilitating increased deployment of these varieties across Africa. The sustainable control of FAW demands a rapid-response effort, overseen by research organizations and governments, to further develop and validate genetic resistance to fall armyworms. Achieving greater impact for maize smallholders is critical to ensuring improved income and food security in Africa. It is also paramount for biodiversity conservation and removing labor burden on farmers applying additional synthetic pesticides to prevent further losses by the pest.

“The SPG Coalition report emphasizes the power of partnership to enhance financial and food security for smallholder communities in the Global South. This is fully in line with the recently launched CIMMYT 2030 strategy. It’s also an important reminder to assess our strong points and where more investment and collaboration is needed,” said Bram Govaerts, CIMMYT director general.

Climate Adaptation Atlas will support evidence-based solutions in Sri Lanka

We are all aware the immense challenges countries face due to climate change, particularly its impacts on vital sectors like agriculture, forestry and livestock. The agriculture industry is profoundly affected by unpredictable weather patterns and frequent incidences of extreme events such as floods, droughts and landslides. Consequently, finding effective solutions to address these issues becomes of paramount importance. Climate-resilient agriculture necessitates the adoption of sustainable crop and land management technologies.

(Photo: Karen Conniff/IWMI)

In the context of South Asia, Sri Lanka stands out as one of the most severely affected countries by the impacts of climate change. The nation contends with a multitude of hazards, ranging from floods and landslides in the western and southwestern regions, drought and pest outbreaks in the northern region and coastal erosion along the coastal belts. These examples underscore the growing complexity and challenges associated with managing climate risks and patterns, especially when multiple hazards occur simultaneously.

In response, Sri Lanka has implemented climate-smart agricultural interventions, including the development and introduction of stress-tolerant crop varieties, rainwater harvesting, the introduction of energy-efficient irrigation systems, implementation of soil and water conservation programs and crop diversification. However, the agricultural sector still faces formidable challenges. There is a lack of up-to-date information on climate change and its impacts, a fragmented institutional setup, overlapping mandates and limited capacity for information sharing. To address these issues, we require zone-based planning and institutional collaboration. Integrating spatial considerations into rehabilitation and development interventions is the main consensus among stakeholders. All ongoing and planned programs need vulnerability information, and there is a consensus among stakeholders on the need to integrate spatial considerations into rehabilitation and development interventions.

This is where the Atlas of Climate Adaptation in South Asian Agriculture (ACASA) project becomes an invaluable asset in expediting Sri Lanka’s journey towards climate-smart agriculture. Recent evidence highlights the need for a comprehensive assessment of location-specific climate actions to bridge knowledge gaps within the country. Through the Atlas, we will quantify localized climatic risks today and, in the future, assess their likely impacts on agriculture and identify key adaptation options to mitigate these risks. This knowledge will strengthen Sri Lanka’s food security and reduce its vulnerability to climate-related hazards. By complementing traditional methods of risk characterization with novel approaches like intensity and frequency analysis of hazards and historical crop yields, our efforts will gain added efficacy.

ACASA, therefore, offers us a unique opportunity to foster collaboration, share knowledge and develop evidence-based innovative solutions to confront the challenges posed by climate change in Sri Lanka. It serves as a platform to connect hazards, practices, tools and adaptation options. By intertwining various aspects of climate change and gaining a deeper understanding of its spatial and temporal dimensions through the Atlas, Sri Lanka is steadfast in its commitment to building resilience and creating a sustainable future for generations to come.

Piece by P. Malathy, DG-Agriculture, Sri Lanka

Atlas crucial to strengthen Nepal’s capacity to cope with climate change

Nepal, like other South Asian nations, faces significant environmental challenges, including climate change and air pollution. The impacts of climate change in Nepal are profound, with species moving to higher elevations, glaciers melting and an increase in extreme precipitation events. Despite only contributing a fraction of global greenhouse gas emissions, Nepal ranks fourth on the Global Climate Risk Index. This vulnerability is attributed to the country’s unique geographical features, characterized by remarkable topographical variation spanning from 60 to 8,848 meters within just 190 kilometers from North to South. In addition to economic challenges and micro-climates, Nepal is highly susceptible to the consequences of climate change, particularly in the mid-and far-western hills and mountains.

Photo: (Neil Palmer/CIAT and CCFAS)

To tackle these challenges, Nepal has taken proactive measures by implementing various adaptation strategies. Key initiatives include the National Adaptation Program of Action (NAPA), National Adaptation Plan (NAP 2021-2050), Agriculture Development Strategy (ADS-2015-2035) and the Green, Resilient, & Inclusive Development (GRID) plan. These initiatives have played vital roles in building resilience. Nepal has also launched the Climate-Smart Village program at the local level in all seven provinces, offering grassroots training on carbon and energy efficiency, biodiversity conservation and water management practices. Another notable achievement is the ‘The Himalayan Climate and Water Atlas,’ which utilizes data from five major river basins and historical climate records to project future climate hazards and extreme events.

Furthermore, Nepal developed the National Climate Change Policy (NCCP) in 2019, prioritizing eight thematic areas including agricultural and food security. The Vulnerability and Risk Assessment Report by the Ministry of Environment (2021) has also examined vulnerability and risks in eight thematic areas and one cross-cutting area for the preparation and implementation of the National Adaptation Plan. This report not only assesses the various dimensions (exposure, sensitivity, adaptive capacity, and risk) of climate change impacts across multiple sectors but also offers a range of adaptation options to address the adverse effects.

To successfully implement and translate the NCCP into action, it is crucial to identify where and how to invest. By aligning with the Atlas of Climate Adaptation in South Asian Agriculture (ACASA), Nepal reaffirms its commitment to addressing the intersection of agriculture and the environment. By leveraging the Atlas, Nepal will expedite its efforts to mitigate the impacts of climate change on agriculture, with a comprehensive understanding of various dimensions of risks and vulnerability. The Atlas will provide a detailed breakdown of risks specific to different commodities, enabling the development of effective mitigation and adaptation solutions.

By complementing ongoing efforts to manage risks and enhance adaptation strategies, the Atlas will serve as a testament to Nepal’s determination to strengthen its capacity to cope with climate change. It will make an invaluable contribution to climate change adaptation technologies, assisting government entities at all levels in formulating effective policy guidelines. By integrating research findings, indigenous knowledge, and cutting-edge technologies, the Nepal Agricultural Research Council (NARC) firmly believes that the Atlas represents another crucial step towards implementing a holistic approach to mitigate and adapt to the negative impacts of climate change on agriculture.

Piece by Dhruba Raj Bhattarai, executive director, Nepal Agricultural Research Council (NARC), Nepal

Bangladesh to improve risk characterization at a granular level with Atlas

Bangladesh is one of the most climate-vulnerable countries in the world. The climate risks are negatively impacting the country’s agricultural sector, which constitutes nearly 12% of the country’s GDP. Additionally, 40% of the country’s workforce rely on agriculture for a major portion of their income (BBS, 2021-22).

Despite these challenges, Bangladesh has demonstrated remarkable economic growth by strategically investing in climate resilience and disaster preparedness over the years. The country has gained global recognition as a leader in these areas, driving its overall development. However, escalating climate risks continue to pose threats to Bangladesh’s progress, particularly impacting the most vulnerable segments of society and jeopardizing the nation’s growth trajectory.

Photo: (Harikhali in Paigachha/CCAFS)

In response to these challenges, Bangladesh has made concerted efforts to develop climate adaptation strategies. A significant milestone was the launch of the GCA Global Hub on locally led adaptation by the Honorable Prime Minister Sheikh Hasina in 2022. This groundbreaking initiative aims to support one million climate-vulnerable migrants in Bangladesh. The government has also formulated policies, plans and programs to combat the impacts of climate change. The Bangladesh Climate Change Strategy and Action Plan (BCCSAP), formulated in 2009 and updated in 2022, focuses on six thematic areas, with five and six emphasizing adaptation and mitigation, respectively. Another important initiative is the Bangladesh Delta Plan 2100, prepared in 2017, which categorizes the entire country into six hotspots. To safeguard the agricultural sector from climate change, Bangladesh has also developed vulnerability Atlases such as the ‘Bangladesh Climate and Disaster Risk Atlas: Volume 1 & 2’ and the ‘Climate Adaptation Services Bangladesh (Haor region).’

While significant progress has been made in risk mapping, there is room for improvement. For instance, the current Atlases operate at the district level, and there is immense potential to downscale them to the upazila (sub-district) level to achieve enhanced granularity. Additionally, transforming the Atlases from report format to a more interactive and user-friendly online one would be beneficial.

The Atlas of Climate Adaptation in South Asian Agriculture (ACASA) project aligns with the goals of BCCSAP, focusing on location-specific climate change adaptation and mitigation strategies in agricultural production. The Atlas will play a crucial role in quantifying localized climatic risks, assessing their impacts on agriculture today and in the future, and identifying key adaptation options to mitigate these risks. This knowledge will strengthen Bangladesh’s food security and reduce its vulnerability to climatic risks.

The Bangladesh Agricultural Research Council (BARC) will actively utilize the Atlas, leveraging agro-geospatial data to expedite decision-making processes. BARC will further leverage its expertise in geospatial tools, crop zoning information systems, GIS-based mobile apps, climate information databases and drought monitoring systems, further combined with the knowledge base of Atlas to ensure informed and evidence-based actions. Moreover, collaborating with ACASA to develop an advanced and interactive online Atlas expands the country’s scope and fosters stakeholder participation, enabling informed decision-making and refined risk characterization at a granular level.

Piece by Shaikh Mohammad Bokhtiar, Executive Chairman, Bangladesh Agricultural Research Council (BARC), Bangladesh

Adaptation Atlas is a positive step towards climate resilient agriculture

Photo: (IWMI/Nirmal Sigtia)

India holds an impressive record in agricultural production. We are among the largest producers of milk, pulses, tea, spices, cashew, jute and bananas. Additionally, we rank as the second-largest producer of wheat, rice, fruits and vegetables. Our agricultural sector has experienced notable growth, with production increasing from 3 to 127 times since the 1970s. We have also witnessed a substantial boost in agricultural productivity, with yields per hectare rising from 0.7 to 2.3 tons during the same period.

Despite these achievements, we face pressing challenges that threaten our agricultural landscape. Water scarcity, soil degradation, pest and disease outbreaks, and the intensifying impacts of climate change need urgent attention.

In India, we observe that minimum temperatures are rising faster than maximum temperatures. We also witness a more pronounced temperature increase during the rabi (winter) season than the kharif (monsoon) season. Rainfall is becoming more variable with increasing episodes of extreme rainfall. These climate risks increase our food and livelihood insecurity.

We need advanced technological interventions and optimized resource allocation to address these challenges. Our development path, “Amrit Kaal,” necessitates climate-friendly practices prioritizing low carbon, water, nitrogen and energy usage. To further realize this vision, adopting 5Ms based on better markets, regional planning for monsoons, improved mechanization, management of micro-irrigation and new fertilizers, and mainstreaming the insurance is pivotal.

India has undertaken research, development and policy initiatives to build resilience in our food production system. However, the growing challenges of climate extremes demand sustained global efforts. The Indian Council of Agricultural Research (ICAR) therefore, welcomes international collaboration to exchange experiences and knowledge in climate action. We believe that collective efforts and shared expertise will strengthen our adaptation strategies.

In this regard, the Atlas of Climate Adaptation in South Asian Agriculture (ACASA) project can play a vital role. ICAR is glad to support ACASA and will deploy a team of young scientists to contribute to and benefit from this Adaptation Atlas. Furthermore, we are pleased to offer our website as a platform to host the Atlas, facilitating its broader utilization within our country. We thank the Borlaug Initiative in South Asia (BISA) and the Bill and Melinda Gates Foundation (BMGF) for initiating this project in India.

Together, let us pave the way toward a climate-resilient future for agriculture, safeguarding our farmers’ livelihoods and securing food for future generations.

Piece by Himanshu Pathak, Secretary (DARE) and Director General-Indian Council of Agricultural Research (ICAR), India

A new Climate Adaptation Atlas to safeguard South Asian agriculture

(Photo: Vinaynath Reddy/CCAFS)

Climate change is no longer a distant threat but a reality that profoundly affects our lives. Among the most vulnerable regions to climate change, South Asia stands out because it is home to over 100 million farmers and produces over 285 million metric tons of milled rice and 128 million metric tons of wheat (FAO 2020-21). Among 193 countries worldwide, South Asian countries rank in the top quarter for climate risk and are experiencing rising meteorological and climate-related disasters. These pose significant challenges to farmers and the 216 million people in South Asia living in extreme poverty (World Bank, 2018), further jeopardizing their food security and livelihoods.

Considering this, with support from the Bill & Melinda Gates Foundation, the Borlaug Institute for South Asia (BISA) is working with national agriculture research systems in South Asia to develop the Atlas of Climate Adaptation in South Asian Agriculture (ACASA).

The Atlas brings together spatially explicit South Asian data on the nature and evolving patterns of climate hazards. It will assess climate risks using gridded, village-scale analyses and through historical crop yield data and satellite signatures. The Atlas will consider the exposure of smallholder populations, farms and crop and livestock enterprises. It will assess the vulnerability or adaptive capacity of those populations and impacts on the region’s critical commodities. Importantly, the Atlas will provide a unique set of on-line tools and a portfolio of adaptation options to underpin better decisions regarding investments in agricultural technologies, climate information services, and policies. The project will also focus on building the capacity of concerned stakeholders such as multi-lateral agencies, government bodies, NGOs, and the private sector in the use of Atlas assets, through training materials, tutorials, and periodic workshops. This will enable informed investments and policy decisions to benefit 100 million farmers in South Asian region. For wider use, the Atlas will be embedded online as an open-source, web-enabled and interactive and dynamic tool for easy access by all concerned stakeholders.

Drawing on the expertise and experience of South Asian nations such as Bangladesh, India, Nepal, and Sri Lanka, which have suffered from extreme heat, prolonged droughts, and severe flooding in key crop-producing areas, ACASA represents an example of collaboration and knowledge exchange to reduce farmers’ risks and offer them ways to adapt.

BISA and CIMMYT are pleased to anchor this remarkable collaboration that leverages multi-disciplinary expertise and perspectives to address the complex challenges posed by climate change, linking the detailed characterization of climatic risks with mitigation technologies and policies to meet the needs of diverse stakeholders. The proposed work will contribute actively to the CIMMYT2030 Strategy where one of the 5 impact areas is centered around Climate adaptation and Mitigation. The entire strategy designs a path toward a Food and Nutrition Secure world through science and innovation in the midst of a global climate crisis.

Established in 2011 by CIMMYT and the Indian Council of Agricultural Research (ICAR), the Borlaug Institute for South Asia (BISA) is a non-profit international organization that applies advanced technologies to improve food systems and food security, nutrition, livelihoods, and the environment in South Asia, home to more than 300 million undernourished people.

El Niño event declared: Impacts on the Limpopo river basin in Southern Africa expected

The International Water Management Institute (IWMI) and CIMMYT call on policymakers and research-for-development organizations to stay informed about the evolving El Niño event and its potential implications in the Limpopo Basin. El Niño is considered the biggest climate oscillation on Earth. IWMI and CIMMYT have utilized various methodologies and climate models to project and assess the potential impacts of the El Niño event.

What are the crucial practices, especially under the changing climatic conditions about the evolving El Niño event?

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Regional Integrated Food Security Intiatives Respond to El Niño

It is official: the World Meteorological Organization (WMO) announced the beginning of the global climate heating event El Niño on July 4, which means that extreme weather events will affect the lives and livelihoods of millions of people on all continents from now until midyear 2024. El Niño is considered the biggest climate oscillation on Earth. It occurs when winds and water temperatures change periodically in the Pacific Ocean. The last occurrence was in 2016, which according to the WMO remains the hottest year on record.

What can we do to mitigate El Niño’s effects in the food systems that sustain livelihoods in the Global South?

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Unveiling the Nexus between Agrifood Systems and Climate Change: Harvesting insights from latest IPCC report

August 2 is Earth Overshoot Day 2023, which marks the date when humanity’s demand for ecological resources and services in a given year exceeds what Earth can regenerate in that year.

Wheat harvest in Juchitepec, State of Mexico. (Photo: Peter Lowe/CIMMYT)

“Climate change is already affecting agrifood systems,” said the director general of the International Maize and Wheat Improvement Center (CIMMYT), Bram Govaerts. “Efforts to protect food and crop systems from things like rising temperatures and drought are part of the overall solution to reverse ecological overshoot; however, we must work hard to ensure these efforts are collaborative, inclusive and sustainable. We want to reach climate goals without compromising food security.”

To harmonize climate change mitigation efforts, CIMMYT and the CGIAR Climate Impact Platform jointly hosted a webinar on July 11, 2023, for relevant stakeholders to discuss the latest findings from the Intergovernmental Panel on Climate Change (IPCC).

The IPCC is an organization of governments that are members of the United Nations and provides regular assessments of the risks of climate change and options for mitigation.

“Climate change in agrifood systems presents special challenges. There are adaptation challenges, but even more importantly, reducing emissions while also protecting the lives and livelihoods of smallholder farmers is a huge challenge that requires scientists and practitioners working together,” said Aditi Mukherji, director of the CGIAR Climate Impact Platform. “Action based on science is needed and IPCC and CGIAR came together in this webinar to present those challenges and solutions.”

The webinar summarized key findings from the IPCC on how climate change effects agrifood systems, including potential adaptation measures and strategies for mitigating the effects of climate change on agri-food systems, how food system management can be part of the solutions to mitigate climate change without compromising food security. Participants also identified potential collaborations and partnerships to implement IPCC recommendations.

“On this acknowledgement of Earth Overshoot Day, the IPCC report is an important milestone as we enact sustainable solutions to protect against climate change and work toward pulling back overshoot,” said Claudia Sadoff, the executive managing director of CGIAR. “All strategies must be under-pinned with reliable data to let us know what is happening now and also in the future.”

The webinar kicked off with presentations from Alex Ruane, co-Director of the GISS Climate Impacts Group, NASA Goddard Institute for Space Studies and IPCC author, Mukherji, and Jim Skea, IPCC Co-Chair.

Challenges Ahead

Ruane examined the current impacts of climate change on agrifood systems and presented findings regarding future effects; knowledge that can help guide priority-setting among relevant stakeholders.

Alex Ruane presented on the current and future impacts of climate change on agrifood systems. (Photo: CIMMYT)

He detailed the perilous state of agrifood systems, as they need to sustainably increase production to provide healthy food for growing populations, adapt to climate change and ongoing climate extremes, mitigate emissions from agricultural lands and maintain financial incentives for agriculture.

Answering those challenges requires the development of models that can track all potential climate drivers. A co-development process with robust data-sharing is vital to provide context for risk management and planning for climate adaptation and mitigation.

Adaptation

Mukherji examined current adaptation efforts within agrifood systems. The IPCC data showed that the people and regions seeing the most adverse effects of climate change have also emitted the fewest amount of greenhouse gases.

Aditi Mukherji delivered a talk on climate change adaptation in the agrifood sector. (Photo: CIMMYT)

There are multiple opportunities for scaling up climate action. CGIAR is working on such responses in the areas of efficient livestock systems, improved cropland management, water use, agroforestry, sustainable aquaculture and more.

Maladaptation can be avoided by flexible, inclusive, long-term planning and implementation of adaptation actions, with benefits shared by many sectors and systems.

Mitigation

Skea investigated the demand and supply side synthesis: land use change and rapid land use intensification have supported increased food production and food demand has increased as well.

He also summarized the IPCC findings regarding land use mitigation efforts, like reforestation (restoring trees in an area where their population has been reduced), afforestation (establishing trees in an area where there has not been recent tree cover) and improved overall forest management, quantifying each action on agrifood systems.

Panel discussion

Moderated by Tek Sapkota, CIMMYT/ CGIAR and IPCC scientist, with panelists Kaveh Zahedi, director of the Office of Climate Change, Biodiversity and Environment, FAO; Jyotsna Puri, associate vice-president, International Fund for Agricultural Development; Jacobo Arango, thematic leader, Alliance of Bioversity and CIAT/CGIAR and IPCC author; Louis Verchot, principal scientist, Alliance of Bioversity and CIAT/CGIAR and IPCC author, and Jim Skea, the panel discussed the IPCC findings and examined crucial areas for targeted development.

Earth Overshoot Day is hosted and calculated by the Global Footprint Network, an international research organization that provides decision-makers with a menu of tools to help the human economy operate within Earth’s ecological limits.