The Met Office has sounded the alarm: El Niño is officially upon us, and the City should take note. This climatic phenomenon, defined by warming sea surface temperatures in the Pacific, historically wreaks havoc on global agricultural output. For Britain, a net importer of food, the implications are clear: higher supermarket bills and upward pressure on inflation.
Let us cut through the environmental hand-wringing and focus on the bottom line. El Niño disrupts monsoon patterns in Asia, dries out parts of Australia, and floods South America. Key crops like wheat, rice, and soybeans suffer. The United Nations Food and Agriculture Organization has already flagged risks to global food supplies. When harvests shrink, prices rise. That is economic gravity.
For the UK, this is a supply side shock we can ill afford. Inflation, while down from its double-digit peaks, remains stubbornly above the Bank of England's 2% target. Core inflation, excluding volatile food and energy, is stickier than a trader’s bonus. A sustained rise in food prices will keep the pressure on Governor Andrew Bailey and his Monetary Policy Committee. Do not expect rate cuts anytime soon.
Gilt yields have already begun to reflect the shifting calculus. The 10-year yield, a barometer of long-term inflation expectations, edged up on the news. Investors are pricing in a higher risk premium for UK sovereign debt. If food imports become costlier, the trade deficit widens, and sterling takes a hit. A weaker pound makes imports even more expensive, a feedback loop the Treasury dreads.
The government's fiscal position is hardly robust. With public debt at levels not seen since the 1960s, Chancellor Jeremy Hunt has limited room for handouts. The triple lock on pensions and the cost of net zero transition already constrain spending. Adding food price support would blow a hole in the budget. Expect more rhetoric about 'resilience' and 'supply chain diversification' rather than concrete action.
And let us not forget the capital flight angle. International investors eyeing UK assets are already jittery after the Truss debacle. A persistent inflation shock could trigger a sell-off in gilts, pushing yields higher and raising borrowing costs for businesses and homeowners. The housing market, already wobbling, would take another blow.
The Met Office warns that the effects could last into 2024. That is a long time for markets to digest. Commodity traders are already positioning for higher grain and vegetable oil prices. Supermarkets, with razor thin margins, will pass on costs to consumers. The Office for National Statistics may soon report food inflation creeping back towards double digits.
In my 20 years covering the City, I have learned that markets hate uncertainty. El Niño injects a dose of it into the global economy. For Britain, it is a reminder of our vulnerability to events beyond our control. The only certainty is that the cost of your weekly shop will rise. Fiscal responsibility and market efficiency demand that we plan for that reality. Prepare your portfolios accordingly."








