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‘Heatflation’: Heatwaves could drive up food prices – but scientists are working on a solution

Food prices may increase further as an unprecedented heatwave wilts Europe’s crops and British farmers face cool, rainy weather, experts have warned.

food prices

European farms are sweltering through a heatwave. It could increase UK food prices, experts have warned. Image: Canva

Food prices may increase further as an unprecedented heatwave wilts Europe’s crops, experts have warned. 

British food price inflation has surged at breakneck speed over the past few months, peaking at 19.2% in March.

It has dipped slightly recently, but is unlikely to fall below 10% by the end of the year, the Bank of England predicted last week, as producers are locked into expensive energy contracts.

Extreme weather stifling food production in Europe isn’t helping, said agricultural supply analyst Cedric Porter. 

Temperatures above 40 degrees and intermittent periods of heavy rain have “led to shortages” of vegetables and some fruit, he explained, which “inevitably push up the price of growing crops and leads to higher prices in the shops.

Porter added: “Wholesale market prices for cherry tomatoes are twice that of a year ago. Carrot prices are a third higher.” 

Italian farmers’ association Coldiretti reported that the country is producing just four out of the 10 pears that they normally do. Overall, European pear supply has plummeted by 13%.

In mid-April, Spain’s main agricultural association, the Coordinator of Farmers’ and Ranchers’ Organisations (COAG), released a report warning that the dry period is causing “irreversible losses” to 3.5 million hectares of crops.

“Spain is one of the most important growers of vegetables,” Porter said.

“Water for irrigation and high sunshine levels means that it can normally grow fruit and vegetables very well… however, all crops suffer at temperatures above 40C and some reservoirs are only a quarter full.”

Olive oil production has also suffered a “deep decline,” said Kyle Holland, Oilseeds and Vegetable Oils Analyst at Mintec.

Spanish olive oil production is usually 1.3 million to 1.5 million metric tonnes. This year, production is likely to be 700,000 metric tonnes maximum.

“From a consumer and farmer perspective, it is troubling,” he said.

“Some crops are at the mercy of weather patterns.”

Meanwhile, a cold British summer is hitting UK farmers

It’s not only European farmers who are under pressure. In the UK, a cold and wet spring and then summer, interrupted by a heatwave in June, has waterlogged several crops.

“It’s a global problem, because these supply chains and commodities are global,” said Holland.

The rice price index hit its highest level in almost 12 years in July according to the UN, after heavy rains in India forced the country to ban exports of non-basmati white rice.

The British Retail Consortium said that its members were providing “excellent service” for customers, but that they were being put under pressure by the inclement weather.

Director of food and sustainability Andrew Opie said: “Supply chains are under pressure from a variety of reasons including extreme weather conditions, inflation, the pandemic, labour shortages and the war in Ukraine.”

What is heatflation?

As climate change bites, the pressures on global supply chains are likely to bring up inflation even further.

According to a 2023 study, continued global warming will increase food prices between 0.6 and 3.2 percentage points by 2060.

“Inflation goes up when temperatures rise, and it does so most strongly in summer and in hot regions at lower latitudes, for example the global south,” said Maximilian Kotz, the paper’s first author and a scientist at the Potsdam Institute for Climate Impact Research.

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Last summer’s record droughts pushed up European food prices by an additional 0.67 percentage points, the researchers found.

“The heat extremes of the 2022 summer in Europe is a prominent example in which combined heat and drought had widespread impacts on agricultural and economic activity,” they wrote.

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Can agriculture adapt?

As weather patterns change, scientists are working hard to develop climate resilient crops.

The University of Sheffield’s Institute for Sustainable Food, for example, has found ways to grow crops like beans, rice, and wheat, using less water.

It takes around 2,500 litres of water to produce a single kilogram of rice. But in 2018, ISF scientists bred a crop that uses 40% less water by manipulating microscopic pores (Stomata) on the plants’ leaves. 

Eventually, science like this could help protect global food supply and the livelihoods of growers.

“Stomata help plants to regulate their water use, so this study could have a significant impact on other crops which are at risk as climate chaos takes hold,” ISF’s Julie Gray, Professor of Plant Molecular Biology, said at the time.

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