The Times Australia
The Times World News

.

What this year's El Niño means for wheat and global food supply

  • Written by David Ubilava, Associate Professor of Economics, University of Sydney
What this year's El Niño means for wheat and global food supply

The World Meteorological Organization has declared the onset of the first El Niño event in seven years. It estimates 90% probability the climatic phenomenon, involving an unusual warming of the Pacific Ocean, will develop through 2023, and be of moderate strength[1].

El Niño events bring hotter, drier weather to places such as Brazil, Australia[2] and Indonesia, increasing the risk of wildfires and drought. Elsewhere, such as Peru and Ecuador, it increases rain, leading to floods.

The effects are sometimes described as a preview of “the new normal” in the wake of human-forced climate change[3]. Of particular concern is the effect on agricultural production, and thereby the price of food – particularly “breadbasket” staples such as wheat, maize and rice.

El Niño’s global impacts are complex and multifaceted. It can potentially impact the lives of the majority of the world’s population. This is especially true for poor and rural households, whose fates are intrinsically linked with climate and farming.

The global supply and prices of most food is unlikely to move that much[4]. The evidence from the ten El Niño events in the past five decades[5] suggests relatively modest, and to some extent ambiguous, global price impacts. While reducing crop yield on average, these events have not resulted in a “perfect storm” of the scale to induce global “breadbasket yield shocks[6]”.

But local effects could be severe. Even a “moderate” El Niño may significantly affect crops grown in geographically concentrated regions — for example palm oil, which primarily comes from Indonesia and Malaysia.

In some places El Niño-induced food availability and affordability issues may well lead to serious social consequences, such as conflict and hunger[7].

Read more: Global temperature rises in steps -- here's why we can expect a steep climb this year and next[8]

Impact on global food prices

The following graph shows the correlation between El Niño events and global food prices, as measured by the United Nations’ Food Price Index[9]. This index tracks monthly changes in international prices of a basket of food commodities.

Despite the general inflationary pattern, there have rarely been big swings in El Niño years. Indeed, it shows prices decreasing during the two strongest El Niño episodes of the past three decades[10].

Other human-caused factors were at play – notably the Asian Financial Crisis in 1997, and the Global Financial Crisis in 2007-2008. In 2015, prices decreased due to stronger (than expected) supply and weaker demand, when the El Niño event did not turn out to be as bad as feared.

This all suggests that El Niño does not usually play the lead role in global commodity price movements.

Impacts on wheat supply

Why? Because El Niño does induce crop failures, but for food grown around the world the losses tend to be offset by positive changes in production across other key producing regions.

For example, it can bring favourable weather to the conflict-ridden and famine-prone Horn of Africa (Djibouti, Ethiopia, Eritrea and Somalia).

A good example is wheat.

The following chart shows how El Nino has affected Australian wheat production since 1980. In six out of nine El Niño events of at least moderate strength, production has dropped significantly – in four cases, at least 30% below the “trend line” (representing the long-term average).

Australia is one of the world’s top three wheat exporters[11], accounting for about 13% of global exports. So its production does affect global wheat prices. But in terms of total wheat grown it’s less significant – about 3.5% of world production[12]. And El Niño-induced crop failures tend to be offset by production in other key wheat-producing regions.

The next graph compare changes in Australia’s wheat production with other significant wheat exporters in El Niño years. Dips in Australia’s production tend tend to be offset by changes elsewhere.

In 1994, for example, Australian wheat production dropped nearly 50% but barely changed elsewhere. In 1982, when Australian production dropped 30%, Argentina’s production was 50% higher. Such balancing patterns tends to be present across most El Niño years.

But some will bear the cost

That said, there will be at least some negative effects. Even if crop failures in one region are fully offset by rich harvests in others, some people are going to bear the costs of El Niño’s direct impact.

Australian farmers, for example, will be worse off if local wheat yields drop while global prices remain relatively stable.

Moreover, because most countries are connected via trade, El Niño will have wider economic impacts[13]. It could still lead to deeper societal issues in some region, such as famine and agro-pastoral conflicts[14].

Read more: Global warming to bring record hot year by 2028 – probably our first above 1.5°C limit[15]

These effects may also be nuanced. For example, poor harvests in Africa may mitigate seasonal violence linked with the appropriation of agricultural surpluses[16]. But considering other vulnerabilities around the world, the odds are that even a moderate El Niño will make already dire socio-economic conditions in some countries worse.

Most of the usual warnings about the caveats of climate change apply here. The difference, of course, is that all this is happening now.

Read more https://theconversation.com/what-this-years-el-nino-means-for-wheat-and-global-food-supply-209386

Times Magazine

What AI Adoption Means for the Future of Workplace Risk Management

Image by freepik As industrial operations become more complex and fast-paced, the risks faced by workers and employers alike continue to grow. Traditional safety models—reliant on manual oversight, reactive investigations, and standardised checklist...

From Beach Bops to Alpine Anthems: Your Sonos Survival Guide for a Long Weekend Escape

Alright, fellow adventurers and relaxation enthusiasts! So, you've packed your bags, charged your devices, and mentally prepared for that glorious King's Birthday long weekend. But hold on, are you really ready? Because a true long weekend warrior kn...

Effective Commercial Pest Control Solutions for a Safer Workplace

Keeping a workplace clean, safe, and free from pests is essential for maintaining productivity, protecting employee health, and upholding a company's reputation. Pests pose health risks, can cause structural damage, and can lead to serious legal an...

The Science Behind Reverse Osmosis and Why It Matters

What is reverse osmosis? Reverse osmosis (RO) is a water purification process that removes contaminants by forcing water through a semi-permeable membrane. This membrane allows only water molecules to pass through while blocking impurities such as...

Foodbank Queensland celebrates local hero for National Volunteer Week

Stephen Carey is a bit bananas.   He splits his time between his insurance broker business, caring for his young family, and volunteering for Foodbank Queensland one day a week. He’s even run the Bridge to Brisbane in a banana suit to raise mon...

Senior of the Year Nominations Open

The Allan Labor Government is encouraging all Victorians to recognise the valuable contributions of older members of our community by nominating them for the 2025 Victorian Senior of the Year Awards.  Minister for Ageing Ingrid Stitt today annou...

The Times Features

Ways to Attract Tenants in a Competitive Rental Market

In the kind of rental market we’ve got now, standing out is half the battle. The other half? Actually getting someone to sign that lease. With interest rates doing backflips and ...

Top Tips for Finding the Ideal Block to Build Your Home

There’s something deeply personal and exciting about building your own home. You’re not just choosing paint colours or furniture, you’re creating a space that reflects your lifes...

The Home Buying Process Explained Step by Step

Buying a home is a thrilling milestone, but it can also feel like navigating a maze without a map. With paperwork, finances, and decisions at every turn, understanding the home-b...

Thinking of Selling Your Home? Here’s What You Need to Know

Selling a home is more than just putting up a “For Sale” sign. It’s a strategic process that involves preparation, pricing, and negotiation - all aimed at getting the best value ...

Smart Ways to Earn Passive Income from Real Estate

Imagine making money without doing much work. You get paid even while you sleep, travel, or do fun things. This is called passive income. Indeed, real estate has great ways to do...

Small Details, Big Difference: How Minor Decor Tweaks Can Redefine Your Home

Have you ever walked into a home that felt effortlessly stylish, but you couldn’t quite figure out why? It’s often not about major renovations; it’s the small details that make a...