Climate change is fundamentally altering the risk environment within which Indian agriculture operates. Rising temperatures, changing rainfall patterns, prolonged dry spells, floods, heat waves and increasing water stress are affecting crop productivity, farm incomes and the reliability of India's food system. The challenge is particularly significant because agricultural production remains closely tied to climatic conditions, while large parts of the country's cultivated area continue to depend on rainfall.
Recent assessments by the Indian Council of Agricultural Research (ICAR) indicate that, without adaptation, climate change could reduce rainfed rice yields by 20% by 2050 and 47% by 2080, while wheat yields could decline by 19.3% and 40%, respectively, under specified climate scenarios. The significance of this transformation extends well beyond farm production. Agriculture remains closely connected to India's food-security architecture, rural employment, consumer prices, agricultural trade and political economy. A climatic shock to a major crop can move through the economy: reducing farm output, affecting procurement, increasing food prices, changing import requirements and weakening rural incomes. Climate change consequently represents not simply an environmental challenge for agriculture, but a challenge to the institutional arrangements through which agricultural risk has traditionally been distributed between farmers, markets and the state.
Figure 1: Climate Variability and Emerging Agricultural Risks in India
Source: Author's synthesis based on Ministry of Earth Sciences, Government of India; Verma, Gupta and Sen (2020); and Davis et al. (2019). Springer Report, CeSifo working report, Govt. of India Reports
Figure 1illustrates the changing climatic risk environment facing Indian agriculture, bringing together evidence on rising temperatures, increasing weather extremes and the growing sensitivity of agricultural production to climatic variability. India's mean temperature has increased by approximately 0.7°C during 1901–2018, while observations also indicate significant changes in the frequency and intensity of extreme weather events. In particular, the frequency of extreme rainfall events over central India increased by about 75% during 1950–2015, while the frequency and spatial extent of droughts also increased during the latter half of the twentieth century. These changes are significant for agriculture because crop production depends not only on the total amount of rainfall received during a season but also on its timing, intensity and distribution.
The agricultural consequences of climate variability are neither uniform across crops nor evenly distributed across regions. District-level evidence from India covering 1966–2011 shows that temperature and rainfall anomalies influence not only crop yields but also the volatility of those yields. The distinction between irrigated and rainfed agriculture is particularly important: where irrigation can partly buffer a rainfall deficit, rainfed systems remain directly exposed to shifts in the timing, intensity and duration of precipitation. Climate variability consequently does more than reduce yields in individual bad years; it can make agricultural outcomes themselves less predictable. For farmers, that uncertainty extends beyond production to income decisions, cropping choices and investment. At a wider scale, repeated fluctuations in output can also complicate the management of food supplies and agricultural markets. The figure captures this interconnectedness: climate risk does not enter the agricultural system through a single channel, but accumulates through the interaction of heat, rainfall variability and extreme events.
Climate Exposure and the Productivity Challenge
The vulnerability of Indian agriculture to climate change is particularly pronounced because climatic exposure varies sharply across regions and cropping systems. ICAR's earlier district-level assessment developed a vulnerability database covering 572 districts, examining variables including drought occurrence, dry spells, rainfall changes and heat and cold waves. The assessment demonstrated that agricultural vulnerability is a function not only of exposure to climatic change but also of sensitivity and adaptive capacity.
Fig 2: Projected Climate-Change Impacts on Yields of Selected Indian Crops
Source: Department of Agricultural Research & Education, MoA&FW, Govt. of India
Figure 2 demonstrates the highly uneven impact that projected climate change could have across India's major cropping systems. Under the specified climate scenarios and in the absence of adequate adaptation, ICAR projects substantial declines in the yields of several important food crops. Rainfed rice emerges as particularly vulnerable, with projected yield reductions of approximately 20% by 2050 and 47% by 2080, while wheat yields could decline by 19.3% and 40%, respectively. Kharif maize is also projected to experience significant reductions, estimated at around 18–23% across the corresponding scenarios. Crop physiology, temperature sensitivity, water requirements and local agro-climatic conditions mediate how the same climatic shift translates into agricultural outcomes. A warmer climate may therefore impose substantial losses on one crop while creating more favourable conditions for another. The projections are not predictions of what will necessarily occur; rather, they indicate how differently agricultural systems could respond under the specified climatic conditions. What matters, then, is not simply the aggregate effect of climate change on agricultural output, but the redistribution of climatic advantage and disadvantage across crops and regions, a shift that could alter existing cropping patterns and the economic logic underlying them.
Heat Stress and the Changing Economics of Cultivation
In the Indian region, temperature is becoming an increasingly important agricultural variable. Unlike many conventional production constraints, heat cannot simply be offset by adding another input. Crops operate within specific temperature ranges, and exposure beyond these thresholds can disrupt physiological processes even when water, nutrients and other inputs remain adequate. The timing of that exposure matters as much as its intensity: for wheat, for instance, heat during grain formation can accelerate crop development and reduce the time available for grain filling, making temperature increasingly relevant to both farm-level productivity and India's wider food-security system.
Figure 3: District Agricultural Vulnerability Index
Source: ICAR
ICAR has previously cited estimates that a 1°C rise in mean temperature could result in wheat yield losses of around 6 million tonnes annually in India, although this estimate comes from earlier research and should not be treated as a current annual-loss forecast. More recent ICAR modelling similarly identifies wheat among the crops facing substantial future climate-related yield risks.
Once temperatures move beyond crop-specific thresholds, the question is no longer only how much water, fertiliser or seed is applied, but whether the crop itself remains physiologically capable of converting those inputs into yield. The response is already visible in the direction of agricultural research. Over the ten years covered by its recent assessment, ICAR reports that 2,593 crop varieties were released, of which 2,177 were classified as climate resilient. The scale of this shift is significant: adaptation is increasingly being built into the crop itself, rather than treated solely as a matter of changing how existing varieties are cultivated.
Water: The Central Contradiction
Climate change also exposes a fundamental contradiction in India's agricultural development model: irrigation reduces vulnerability to rainfall variability, but poorly managed irrigation can intensify water scarcity.
The problem is particularly visible in regions where groundwater supports intensive cultivation. The north-western rice-wheat system provides a prominent example. Irrigation, procurement and established markets have made rice cultivation economically attractive in regions that are not naturally suited to water-intensive production. As climatic variability increases and groundwater reserves come under pressure, maintaining the existing production structure becomes progressively more difficult.
Figure 4: Paddy Cultivation, Procurement Incentives and Groundwater Extraction in Punjab
Source: Groundwater - CGWB, Government of India, Paddy area, production and yield - Punjab Government, Paddy MSP 2024–25 - Government of India.
Figure 4 illustrates the structural relationship between Punjab's paddy-centred agricultural economy, procurement incentives and groundwater stress. The expansion and persistence of paddy cultivation have been supported by established procurement arrangements, price incentives and extensive irrigation infrastructure. While these mechanisms have contributed to Punjab's role in India's food-security system, they have also reinforced a cropping pattern with substantial groundwater requirements. The state's groundwater assessment for 2023 estimated annual groundwater extraction at 27.803 BCM, compared with an annual extractable resource of 16.978 BCM, placing the stage of groundwater extraction at 163.76%. The figures demonstrate the central policy contradiction: the same agricultural institutions that have reduced production and market risks for farmers can also reinforce cultivation patterns that increase pressure on finite groundwater resources. Addressing this problem therefore requires more than asking farmers to reduce water consumption; it requires aligning procurement, price incentives, crop diversification and groundwater management so that economically viable alternatives to paddy become available to farmers
Figure 5: Water Stress, Irrigation Efficiency and Climate Resilience in Indian Agriculture
Source: Monsoon Variability and Rice production, ICAR
Figure 5 demonstrates the central contradiction of Indian agricultural water economy, where irrigation has strengthened production capacity and reduced farmers' exposure to rainfall uncertainty, but continued dependence on water-intensive cultivation can intensify groundwater stress. The expansion of net irrigated area illustrates the scale of India's effort to reduce agriculture's dependence on rainfall. Yet the simultaneous depletion of groundwater exposes the limits of treating irrigation expansion as an unqualified measure of resilience. The contradiction is important: irrigation can reduce exposure to rainfall variability at the farm level while intensifying pressure on the resource on which that resilience depends. Evidence from farm-level technologies suggests that the relationship between productivity and conservation need not be equally contradictory. ICAR's modified System of Rice Intensification, combined with alternate wetting and drying, reduced water requirements by 22–35%, increased grain yields by 36–49%, and lowered water use per kilogram of rice from 2,801 litres to 1,571 litres. These results shift the focus from how much irrigation agriculture receives to how effectively each unit of water is converted into agricultural output. That distinction becomes increasingly important as the limits of further irrigation expansion become more visible.
Crop Diversification Must Become Economically Viable
Crop diversification is frequently presented as an obvious solution to India's climate and water problems. In practice, however, diversification is difficult because farmers respond to market structures rather than environmental recommendations alone.
A farmer considering a shift from rice to pulses, oilseeds or millets must evaluate not only agronomic suitability but also expected price, procurement arrangements, storage facilities, processing capacity, access to seed and the reliability of demand. Consequently, diversification without market development can transfer risk from water resources to farm incomes.
The required policy shift is therefore from crop substitution to value-chain diversification. If policymakers want farmers to cultivate less water-intensive crops, those crops require the same economic ecosystem that makes existing staples attractive: research and extension, quality seed, credit, storage, processing, procurement or market linkages and predictable demand.
The Limits of Compensation: Rethinking Crop Insurance
Climate change is also altering the nature of agricultural risk that insurance systems are expected to absorb. Conventional crop insurance has largely been structured around compensating farmers once a measurable loss has occurred. Greater climatic volatility, however, makes the timing, intensity and spatial distribution of that loss increasingly important. Weather forecasting, remote sensing, satellite imagery and digital crop monitoring can improve the ability to identify and quantify such changes, but the technological capacity to detect a loss does not, by itself, determine whether an insurance system works. Its effectiveness ultimately rests on whether the assessment corresponds to the farmer's actual exposure and whether compensation reaches the farmer in time to matter.
This becomes particularly important when climatic stress does not result in complete crop failure. Excessive heat during a sensitive growth stage, for instance, may substantially reduce yields without destroying the crop, while intense rainfall immediately before harvest can damage both quantity and quality. A system based primarily on broad seasonal averages can therefore overlook losses that are agriculturally significant but difficult to capture through conventional measures. Climate change is consequently not simply creating more claims; it is challenging the underlying definition of what constitutes an insurable agricultural loss.
From Resilient Farms to Resilient Agricultural Systems
Agricultural adaptation cannot remain confined to the farm because climate shocks do not stop at the farm gate. A drought affecting pulses can reduce production, push up prices and increase import requirements; a heatwave affecting wheat can alter procurement and public food stocks; and floods can damage crops while simultaneously disrupting roads, warehouses, markets and processing facilities. The vulnerability of agriculture is consequently shaped not only by what happens in the field, but by the capacity of the wider food system to absorb and recover from disruption.
This makes infrastructure an important, but often overlooked, component of agricultural resilience. Storage facilities, cold chains, rural roads, irrigation systems, agricultural markets and processing units can determine whether a climatic shock remains a local production loss or develops into a wider supply-chain disruption. A farmer may, for instance, cultivate a climate-resilient variety and still face substantial losses if harvested produce cannot reach a functioning market after a flood. Resilience at one point in the system can therefore be cancelled out by vulnerability elsewhere.
India already possesses much of the institutional architecture through which these risks can be addressed. The National Action Plan on Climate Change includes the National Mission for Sustainable Agriculture, while programmes such as NICRA have focused on climate-resilient technologies, contingency planning and adaptation. The Economic Survey 2025–26 also identifies the National Mission on Sustainable Agriculture's emphasis on efficient water use, rainfed-area development and soil-health management. What emerges from these initiatives is less a shortage of individual interventions than a question of how effectively they connect with one another. The next stage of climate adaptation is consequently about linking the farm, infrastructure and market dimensions of resilience into a functioning agricultural system.
Rewriting the Agrarian Compact
India's historical agrarian compact was built around a relatively straightforward division of risk. Farmers made production decisions and bore much of the immediate uncertainty, while the state attempted to reduce the consequences of agricultural shocks through irrigation, procurement, subsidies, credit, insurance and food-security programmes.
Climate change makes this arrangement increasingly inadequate because the frequency and intensity of shocks can rise faster than compensatory mechanisms can respond. The more sustainable objective is therefore to move from post-shock compensation towards pre-shock risk reduction.
Figure 6: Water-Saving Rice Cultivation: Modified SRI with Alternate Wetting and Drying
Source: Modified SRI method for enhancing the water productivity of rice
Figure 6 demonstrates the contrasting water and productivity outcomes associated with alternative rice-production systems. The modified System of Rice Intensification (SRI), combined with alternate wetting and drying (AWD), achieved 22–35% water savings and a 36–49% increase in grain yield compared with conventional puddled rice cultivation, according to ICAR, Indian Institute of Water Management. The difference is even more pronounced when water use is measured relative to output. Conventional cultivation required approximately 2,801 litres of water per kilogram of rice, compared with 1,571 litres per kilogram under modified SRI, a reduction of roughly 44% in water use per kilogram of grain. The significance of these figures lies in the fact that water saving and productivity do not move in opposite directions in this case. Alterations in planting density, irrigation scheduling and field-water management changed the amount of agricultural output generated from each unit of water, rather than simply reducing the amount of water applied. This distinction is increasingly important in regions where the constraint is not only access to irrigation, but the declining availability of the water resource itself.
Conclusion
Climate change is forcing India to reconsider what agricultural security means. The traditional objective was primarily to ensure sufficient production despite rainfall uncertainty and periodic agricultural shocks. The emerging challenge is broader: India must maintain food production, protect farm incomes and preserve the natural resources on which agricultural production depends, even as temperature and rainfall patterns become increasingly volatile.
The data already indicate the direction of travel. ICAR's climate projections point towards significant potential yield losses in rainfed rice and wheat without adaptation, while its research on climate-resilient varieties and resource-efficient technologies demonstrates that these outcomes are not predetermined. India's foodgrain production has continued to expand, and thousands of climate-resilient varieties and technologies have been developed. The challenge is to translate this scientific capacity into a coherent economic system that makes resilience viable for farmers.
Rewriting the agrarian compact therefore means moving beyond a model in which the state primarily compensates farmers after climatic disasters. The objective should be to create an agricultural system in which research reduces biological vulnerability, irrigation reduces water risk, markets reward diversification, insurance absorbs residual shocks, and climate information improves everyday farm decisions.
The
next transformation of Indian agriculture will not be defined simply by how
much more food the country can produce. It will be defined by whether that food
can be produced reliably without exhausting the ecological foundations of
production and without transferring an unsustainable share of climate risk to
farmers. Climate resilience, in this sense, is no longer an environmental
add-on to agricultural policy. It is becoming the foundation on which the
future of Indian agricultural productivity and food security will have to be
built.
Cover Picture Credit: Pexels
