Environment & Climate5 Nov 2026 · about 6 min

Climate change threatens India’s food supply, pushing up prices: Report

The brief

Climate change is already reducing India’s harvests and making food less reliable and affordable. Higher temperatures, irregular rainfall and extreme weather damage crops, interrupt supply chains and threaten rural livelihoods. These effects reach consumers through shortages, waste and price volatility. Research cited in the report estimates that a 1°C temperature rise over five decades reduced average crop yields by about 8%. Maize losses reached up to 16%, while a 20% rainfall decline could reduce paddy yields by 12%. In 2024, heatwaves affected onion production and pushed prices up 80%. The pressure is expected to grow. Wheat production could fall by as much as 23% by 2050, and climate-related losses in paddy, wheat and maize could equal 0.28% to 1.02% of GDP. Stronger adaptation, storage and agroecological farming are therefore central to protecting supplies and affordability.

How is climate change already affecting India’s crop yields, food supplies, and food prices?

Research cited in the report estimates that a 1°C temperature rise over five decades reduced average crop yields by about 8%. Maize losses reached up to 16%, while a 20% rainfall decline could reduce paddy yields by 12%. In 2024, heatwaves affected onion production and pushed prices up 80%.

The pressure is expected to grow. Wheat production could fall by as much as 23% by 2050, and climate-related losses in paddy, wheat and maize could equal 0.28% to 1.02% of GDP. Stronger adaptation, storage and agroecological farming are therefore central to protecting supplies and affordability.

Which climate and ecological pressures are putting Indian agriculture at risk?

Indian agriculture is exposed to both climate hazards and environmental pressures. Rising temperatures can reduce yields and increase heat stress. Erratic rainfall creates water shortages or damaging excesses. Extreme weather causes direct crop losses, while ecological degradation weakens the natural foundations needed for recovery.

The report also identifies heavy dependence on chemical fertilisers, groundwater extraction and continuous paddy-wheat cultivation as major risks. These practices contribute to soil degradation, water stress and declining agricultural resilience. Together, they make farms more vulnerable when heat, drought or unusual rainfall arrives.

The danger extends beyond production. Climate pressures disrupt transport, storage, trade and markets, contributing to food insecurity and price volatility. The report recommends agroecological practices, climate-resilient seeds, early warnings, weather advisories, insurance and decentralised storage to help agriculture manage these combined risks.

How large are the current and projected losses in crops, fish catches, milk production, and farm income?

The report presents losses across crops, fisheries, livestock and the wider economy. A 1°C rise over the past five decades reduced average crop yields by about 8%. Climate-related losses in paddy, wheat and maize alone could cost between 0.28% and 1.02% of India’s GDP by 2050.

Specific projections show wheat production falling by as much as 23% by 2050. Fish catches could decline 10–17% over the same period. Heat stress already causes annual losses of around 1.8 million tonnes of milk, equal to about 2% of national production and roughly ₹2,661 crore in economic losses.

The article does not provide a separate nationwide figure for farm-income losses. It does report broader impacts on farmers, retailers and consumers, including disaster losses, supply disruptions and price volatility. These combined effects could make livelihoods less secure as climate risks intensify.

How do crop failures, food waste, and supply-chain disruptions turn extreme weather into higher prices for consumers?

Extreme weather raises food prices through two linked channels. It reduces the amount farmers can produce and damages food after harvest. When supply falls while demand remains, prices become more volatile. Transport and storage problems magnify the shock by destroying food before it reaches markets.

During India’s hottest year on record, mangoes that usually lasted two days in markets spoiled within one day. India loses 30–40% of its fruits and vegetables and 5–6% of its grains because of inadequate storage and transport. Only 4% of fresh produce has cold-chain coverage, producing estimated annual losses of $13 billion.

Heatwaves also pushed onion prices up 80% in 2024. A Reserve Bank of India study found that a one-unit increase in temperature deviation raised vegetable inflation by about 1.3 percentage points. Export restrictions on wheat in 2022 also showed how shortages can trigger policy responses.

Why are small farmers, retailers, and other parts of the food supply chain especially vulnerable to climate shocks?

Climate shocks do not affect every food-system actor equally. Small farmers often have fewer financial resources to invest in resilient seeds, irrigation, storage or recovery after disasters. The report highlights a major shortage of adaptation finance for small farmers in South Asia. This can make one failed harvest a serious livelihood threat.

Retailers are also exposed because perishable food can spoil quickly in extreme heat. During the summer of 2024, mangoes lasted about one day instead of two in markets. A fruit seller at Delhi’s Azadpur Mandi lost more than ₹1 lakh. Small retailers have limited cold storage and are called the supply chain’s “weakest link.”

Other vulnerabilities come from inadequate transport, storage and insurance. These gaps create waste, supply interruptions and income losses. The report recommends credit, insurance, decentralised storage, processing and stronger early-warning systems to spread and reduce climate risk.

What is agroecology, and how could practices such as crop diversification, water conservation, and healthier soils make farming more resilient?

In this report, agroecology means moving away from a mainly chemical-intensive, yield-focused model toward practices that work with ecological processes. It prioritises healthier soils, water conservation, crop diversity and lower dependence on external chemical inputs. The goal is not only production, but stronger and more durable food systems.

Diversifying crops can reduce dependence on one harvest and spread climate risk. Conserving water can help farms cope with erratic rainfall and water stress. Restoring soil health can improve agricultural resilience. These measures directly address problems linked to heavy fertiliser use, groundwater extraction and continuous paddy-wheat cultivation.

The report presents agroecology as part of a wider transition requiring institutional support. Research, extension, credit, insurance, procurement and subsidies must support farmers. Climate-resilient seeds, block-level weather advice, early warnings and decentralised storage are also recommended to make the transition practical.

Why do soil health, groundwater availability, biodiversity, and crop diversity determine whether a food system can withstand climate change?

A resilient food system depends on the ecological resources that support production. Healthy soils help sustain crops, while reliable water supplies are essential when rainfall becomes erratic. Biodiversity and crop diversity provide broader protection than relying heavily on one crop or one farming pattern. When these foundations weaken, climate shocks cause larger losses.

The report links heavy chemical-fertiliser use, groundwater extraction and continuous paddy-wheat cultivation to soil degradation, water stress and declining resilience. These pressures can leave agriculture less able to absorb heat, rainfall changes and extreme events. The result is greater risk to yields, livelihoods and food supplies.

The recommended response is an agroecological transition. It would restore soil health, conserve water and diversify crops while reducing dependence on external chemical inputs. Supporting reforms in research, extension, credit, insurance, procurement and subsidies would help farmers adopt these practices and strengthen India’s food-system resilience.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.