How digitalization is reshaping agriculture in an era of drought and flood
The accelerating toll of extreme weather on agriculture is laid bare in the Food and Agriculture Organization of the United Nations’ latest flagship report, The Impact of Disasters on Agriculture and Food Security 2025. Drawing on more than three decades of global data, the study shows how droughts, floods and other climate-related hazards are systematically eroding food production, rural livelihoods and nutritional security, while exposing persistent blind spots in how these impacts are understood and addressed.
FAO’s analysis of post-disaster needs assessments (PDNAs) shows that floods generate the largest overall economic damage to agriculture
Between 1991 and 2023, disasters caused an estimated US$3.26 trillion in agricultural losses worldwide, nearly USD 100 billion per year. Climate-related hazards, notably floods, droughts and heatwaves, accounted for almost USD 2.9 trillion of that total. While floods emerge as the single most destructive hazard in absolute economic terms, droughts stand out for the disproportionate damage they inflict on agriculture compared with other sectors, underscoring the sector’s acute dependence on water availability and climatic stability.
Floods and droughts: different hazards, shared consequences
Droughts unfold more slowly, yet their impacts can be even more enduring
FAO’s analysis of post-disaster needs assessments (PDNAs) shows that floods generate the largest overall economic damage to agriculture, destroying crops, livestock, infrastructure and storage facilities across entire river basins. Droughts, by contrast, account for nearly 80 percent of agriculture’s share of disaster-related losses relative to other sectors, reflecting the cumulative and pervasive nature of water scarcity.
These hazards often interact with pre-existing vulnerabilities. Floodwaters not only wash away standing crops but also degrade soils, spread plant and animal diseases, disrupt transport networks and isolate rural communities from markets. Droughts unfold more slowly, yet their impacts can be even more enduring, progressively reducing yields, killing livestock, depleting surface and groundwater resources and, in some cases, forcing farmers to abandon production altogether.
Recent events illustrate the scale of these risks. The Horn of Africa endured a severe multiyear drought beginning in 2020, culminating in the loss of more than 13 million livestock across Somalia, Ethiopia and Kenya. In South America, drought linked to El Niño conditions in 2023 caused soybean and maize yields in parts of Brazil, Argentina and Uruguay to fall by up to 40 percent. At the same time, catastrophic flooding in Pakistan destroyed nearly 850,000 hectares of crops, affecting some nine million people.
Invisible losses and cascading impacts
FAO estimates that rural female-headed households lose around 8 percent more income due to excessive heat events and 3 percent more due to floods
FAO emphasizes that headline production losses capture only part of the damage. Extreme events trigger cascading effects throughout agrifood systems, from infrastructure destruction and market disruptions to financial stress and long-term ecosystem degradation. Damage to roads, irrigation canals and storage facilities can prolong losses well beyond the initial shock, while power outages can render cold storage unusable within hours, wiping out high-value perishable products.
The nutritional consequences are equally stark. Production losses over the past three decades correspond to a reduction of about 320 kilocalories per person per day globally. Losses of iron alone amount to roughly 60 percent of daily requirements for men, alongside critical shortfalls in essential vitamins and minerals that disproportionately affect vulnerable populations.
These impacts are not evenly distributed. Women and marginalized groups often bear a heavier burden: FAO estimates that rural female-headed households lose around 8 percent more income due to excessive heat events and 3 percent more due to floods, reflecting structural inequalities in access to land, finance and productive resources.
From innovation to implementation: digital tools for reducing agricultural risk
Against this backdrop of escalating losses, FAO’s report highlights how digital technologies are reshaping the way droughts, floods and other hazards are anticipated, measured and managed in agriculture. Advances in remote sensing, data integration and analytics are enabling a gradual shift from reactive disaster response toward proactive risk reduction and anticipatory action.
Advances in remote sensing, data integration and analytics are enabling a gradual shift from reactive disaster response toward proactive risk reduction
Satellite-based monitoring has become a cornerstone of this transformation. Near-real-time earth observation data now allow governments and humanitarian actors to detect drought stress, flooding and crop damage as events unfold. FAO platforms such as the Agricultural Stress Index and WaPOR translate satellite imagery into actionable indicators of vegetation health and water productivity, supporting early warning, damage assessment and recovery planning at scale.
Interoperable digital platforms are also helping close long-standing data gaps by integrating climate, soil, hydrological and socioeconomic information. These systems improve the granularity and timeliness of risk assessments, particularly for slow-onset hazards like drought, which have historically been underreported. During Southern Africa’s 2024 El Niño–related drought, FAO was able to generate crop yield forecasts up to three months before harvest, enabling earlier impact assessments and more targeted responses.
Digital solutions are strengthening the link between early warning and early action. In flood-prone contexts, near-real-time mapping of inundation extent and persistence allows authorities to prioritize at-risk cropland and communities. FAO documents how such tools supported anticipatory action during El Niño–driven flooding in Somalia, where early warnings informed evacuation planning and flood defence measures that protected lives and agricultural assets.
Digital solutions are strengthening the link between early warning and early action
Beyond monitoring, digital innovation is reshaping how climate risk is transferred and absorbed. Parametric insurance schemes, powered by satellite data and automated analytics, are expanding rapidly, reducing transaction costs and speeding up payouts to farmers affected by drought or excess rainfall. According to FAO, these platforms now reach millions of smallholder farmers, helping stabilize incomes and support recovery after climate shocks.
Yet the report cautions that technology alone is not enough. Effective implementation depends on strong institutions, data governance, connectivity and human capacity. With 2.6 billion people still offline globally, many rural areas remain excluded from digital services. Scaling digital tools for disaster risk reduction, FAO argues, will require sustained investment, human-centred design and policies that ensure equitable access—particularly for smallholders, women and marginalized communities.