Food security in an era of climate change

Food & Farming · 2026-06-24 · 10 min read

By Ravi Patel, Sustainability & agriculture

The threat is not a gradual decline in average yields. It is that bad years now arrive close together.

Averages hide the problem. A climate that produces the same mean rainfall through longer dry spells and heavier downpours is far worse for a crop than a steady one, and it is variability rather than gradual warming that empties stores.

Global trade concentrates the risk. A small number of countries supply most of the traded staples, so a drought in two of them at once moves prices everywhere — and export restrictions imposed to protect domestic supply then amplify the shock.

Diversity is the practical defence. More crop species in rotation, more varieties within a crop, and more regions supplying a market all reduce the chance that one weather event becomes a shortage.

Storage and logistics matter as much as production. A significant share of harvest is lost between field and consumer in exactly the places where supply is tightest, and cold chain, drying and warehousing deliver more food per unit of investment than most yield programmes.

Finally, security is about access, not just quantity. Most modern hunger occurs when food exists and people cannot afford it, which makes income support and price stability as central to the problem as anything grown in a field.

Tags: food, climate, agriculture

Ravi Patel — Ravi reports on agriculture, food systems and sustainability for ESPYCRUX, with a habit of following the money before the technology. He grew up around a family farm and it shows in the questions he asks.