Each year, Ukraine exports enough food to feed 400 million people around the world. But the Russian invasion has disrupted vital trade routes, trapping an estimated 25 million tonnes of grain in silos around the port city of Odesa.

The African Union describes the situation as a catastrophic scenario, and the UN Secretary General says the shortages could tip millions of people into food insecurity.

But how reliant is the world on Ukrainian – and Russian – grain? What will a shortfall do to the world’s most vulnerable countries?

On the Inquiry this week, Charmaine Cozier asks, has the war in Ukraine sparked a global food crisis?

Producer: Ravi Naik Researcher: Chris Blake Editor: Tara McDermott Technical Producer: Nicky Edwards Production Coordinator: Brenda Brown